IP UPDATE
Exploring the Latest in Intellectual Property Law
IP UPDATE
Exploring the Latest in Intellectual Property Law
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Who Solved the Problem? Joint Inventors, That’s Who

by | Apr 4, 2024 |

The US Court of Appeals for the Federal Circuit affirmed a district court’s decision to correct inventorship in a post-issuance inventorship dispute, finding that the alleged joint inventors’ contributions were significant even though they were mostly unclaimed. Tube-Mac Indus., Inc. v. Campbell, Case No. 22-2170 (Fed. Cir. Mar. 15, 2024) (Lourie, Hughes, Stark, JJ.) (nonprecedential).

Steve Campbell was the original sole inventor named on a utility patent application directed to a container for transporting gaseous fluids. Before Campbell filed the patent application, Campbell’s prototypes had a “major problem” with the container’s liner. Campbell enlisted the help of Tube-Mac Industries’ Gary Mackay and Dan Hewson to solve the problem. Campbell, Mackay and Hewson exchanged plans regarding the problem over the course of several months. Campbell’s patent issued, naming himself as the sole inventor. Mackay, Hewson and Tube-Mac filed suit seeking to be named as co-inventors. The district court agreed and ordered correction of the patent under 35 U.S.C. § 256. Campbell appealed.

A court may order a correction of inventorship when it determines that an inventor has been erroneously omitted from a patent. In any inventorship challenge, the inventors listed in an issued patent are presumed to be the correct inventor(s). Thus, a party challenging inventorship must prove incorrect inventorship by clear and convincing evidence. A joint inventor must contribute significantly to the invention’s conception or reduction to practice when that contribution is measured against the scope of the full invention.

The Federal Circuit found that prior to the involvement of Mackay and Hewson, Campbell did not have a viable invention that could be reduced to practice without extensive experimentation. The Court also found that Mackay’s and Hewson’s contributions solved the problem that precluded the prototype from being successful, even though their contributions were “mostly unclaimed.” The Court noted, however, that their contributions were included in the application’s figures, specifications and dependent claims. Accordingly, the Court found that Mackay and Hewson contributed significantly to the conception of the invention and should be included as co-inventors.

The Federal Circuit also dismissed Campbell’s arguments that the district court did not properly construe the claims to determine their scope and erred by misidentifying the subject matter of the claims.



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What Use Does § 271(e)(1) Safe Harbor “Solely” Protect?

by | Apr 4, 2024 |

The US Court of Appeals for the Federal Circuit affirmed that the 35 U.S.C. § 271(e)(1) safe harbor protecting certain infringing acts undertaken for regulatory approval applied to an alleged infringer’s importation of transcatheter heart systems while attending a trade conference, finding the importation reasonably related to submitting information to the US Food & Drug Administration (FDA) for medical device approval. Edwards Lifesciences Corp. v. Meril Life Sciences Pvt. Ltd., Case No. 22-1877 (Fed. Cir. Mar. 25, 2024) (Stoll, Cunningham, JJ.) (Lourie, J., dissenting).

The fact pattern in this case is unusual. Meril, a manufacturer of a transcatheter heart system approved for sale in Europe but not in the United States, brought two demonstration samples to San Francisco with lawyer-generated instructions that the samples could not be used, sold or offered for sale in the US. Meril presented at a trade booth during a cardiovascular medical device conference. It was undisputed that the samples never left a bag that was first kept at a hotel and later brought to the conference and placed in a storage room.

Edwards Lifesciences nevertheless sued for infringement based on importation. The district court found that Meril’s importation was reasonably related to its attempts to secure regulatory approval because they were for the purposes of recruiting investigators for a clinical trial Meril had made initial efforts to commence (as required to market this type of device in the US). Accordingly, the district court granted summary judgment of noninfringement on grounds that the safe harbor under § 271(e)(1) applied. Edwards appealed.

Edwards argued that the district court erred by not finding a genuine material dispute of fact relating to Meril’s subjective intent (i.e., whether, notwithstanding some evidence, Meril actually intended the importation to relate to FDA approval). Edwards also challenged whether the importation was solely related to FDA approval and argued that the non-use of the devices to recruit investigators rendered the safe harbor inapplicable.

The Federal Circuit rejected all three challenges. Canvassing the Federal Circuit’s decades of prior case law, the Court concluded that a putative infringer’s intent is irrelevant when determining whether the safe harbor applies. Thus, even if Edwards were correct in challenging Meril’s intent, there would still be no material factual dispute. On the issue of whether the importation activity was solely related to FDA approval, the Court, discussing the use of “solely” in terms of the safe harbor provision, reiterated prior cases’ determination that the uses need not be solely related to FDA approval, but rather, that the only uses that would be protected were those within the safe harbor. Finally, the Court again deemed the non-use of the devices irrelevant, as nothing in the statute required actual use.

Judge Lourie dissented, not because he necessarily viewed the district court’s or the majority’s application as squarely incorrect under existing precedent, but because he believed that existing precedent did not expressly give proper weight to the statute’s use of the word “solely.” Applying a plain text analysis, Judge Lourie argued that the safe harbor [...]

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Mandamus Denied but Jurisdictional Door Left Open a Crack

by | Apr 4, 2024 |

The US Court of Appeals for the Federal Circuit denied a patent owner’s writ of mandamus seeking to prevent a defendant from amending its answer to add an affirmative licensing defense, but also noted that the defense was added only after the district court found that there were no remaining claims. In re VLSI Technology LLC, Case No. 24-116 (Fed. Cir. Mar. 18, 2024) (Moore, Taranto, Chen, JJ.)

VLSI asserted four patents against Intel in the Northern District of California. In December 2023, the district court granted summary judgment that two of the patents were not infringed and denied summary judgment of noninfringement on the remaining two patents. The parties additionally submitted cross motions for summary judgment on a licensing defense that turned on a forum selection clause, but the court denied both motions. To deprive the court of jurisdiction, VLSI granted Intel a covenant not to sue for infringement of the remaining two patents in the case. Two days later, Intel moved to amend its answer to add a counterclaim for a declaratory judgment that Intel was licensed to VLSI’s entire patent portfolio. The district court granted Intel’s motion, and VLSI filed a mandamus petition to block Intel’s amendment.

The Federal Circuit denied VLSI’s petition for two primary reasons. First, the Court determined that VLSI had not shown that it had no other available means of obtaining relief. The district court expressly invited the parties to brief issues pertaining to Intel’s licensing defense in subsequent briefing, and VLSI had since filed a motion to dismiss pertaining to this very issue. The Court also noted that VLSI could raise this issue on appeal after a final judgment. Second, the Court determined that VLSI failed to show that the district court abused its discretion in allowing Intel to amend its answer, finding that Intel acted diligently in seeking to amend its answer and that VLSI had long since known about the potential defense.

With respect to the substantive issue of whether the district court had subject matter jurisdiction, the Federal Circuit declined to offer an opinion at this stage. Nevertheless, in an apparent message to the court below, the final sentence of the Court’s opinion reads, “[w]e only note that Intel’s motion to amend its answer was filed after the court determined there were no remaining claims, such that no case or controversy remained before the court.”



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Is Evidence of All Claimed Elements in Prior Art Enough? Not Without Motivation to Combine

by | Apr 4, 2024 |

The US Court of Appeals for the Federal Circuit reversed a Patent Trial & Appeal Board obviousness decision, finding that disclosure in the prior art of all recited claim elements across multiple references, without more, does not establish obviousness unless there is evidence of a motivation to combine. Virtek Vision Int’l ULC v. Assembly Guidance Systems, Inc., Case No. 22-1998 (Fed. Cir. Mar. 27, 2024) (Moore, C.J.; Hughes, Stark, JJ.)

Virtek holds a patent that discloses “an improved method for aligning a laser projector with respect to a work surface.” Lasers are used to “project a template image onto a work surface to direct manufacturing processes.” The patent discloses a two-step process that improves efficiency over the prior art.

Aligned Vision petitioned for inter partes review (IPR), challenging all of the patent’s claims. Aligned Vision asserted four combinations of prior art references over which it contended the claims were obvious. In its Final Written Decision, the Board found that some of the claims were unpatentable as obvious, but others were not.

The Board determined that certain claims, which depended from the independent claim, would have been obvious over two combinations of references: Keitler and Briggs, and Briggs and Bridges. In pertinent part, the independent claim recites “identifying a pattern of the reflective targets on the work surface in a three dimensional coordinate system.” Save for the 3D claim element, all the other claim elements were disclosed in Bridges and Keitler. The Board found that a skilled artisan would have been motivated to use the 3D coordinate system disclosed in Briggs instead of the angular direction systems in Keitler or Bridges. The Board reasoned that this combination would have been obvious to try because Briggs disclosed both 3D coordinates and angular directions.

With respect to the direct appeal, the Federal Circuit found that the Board erred as a matter of law regarding motivation to combine. “It does not suffice to meet the motivation to combine requirement to recognize that two alternative arrangements such as an angular direction system using a single camera and a 3D coordinate system using two cameras were both known in the art.” Rather, the patent challenger must show that a skilled artisan would swap the element in one reference for an element in another reference. “The mere fact that these possible arrangements existed in the prior art does not provide a reason that a skilled artisan would have substituted the one-camera angular direction system in Keitler and Bridges with the two-camera 3D coordinate system disclosed in Briggs.”

Here, the patent challenger presented no argument in the IPR petition regarding why a skilled artisan would make this substitution, other than that the two different coordinate systems were “known to be used.” Specifically, Briggs made no mention of any benefits the 3D system might provide over the angular system. Aligned Vision’s expert testified multiple times that he could not provide a reason to combine the references, and Aligned Vision presented no evidence that “there are a finite number of [...]

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Same Product in Different Packaging May Constitute Separate Market for Antitrust Purposes

by | Mar 28, 2024 | ,

Addressing an issue of first impression, the US Court of Appeals for the Second Circuit concluded that two medications that contain the same ingredients but are packaged in different forms constitute separate markets for purposes of assessing antitrust violations. Regeneron Pharm., Inc. v. Novartis Pharma AG, Case No. 22-0427 (2d Cir. Mar. 18, 2024) (Parker, Lee, Merriam, JJ.)

Regeneron sued Novartis in the US District Court for the Southern District of New York alleging antitrust violations under the Sherman Act and New York state law claims. The specific products at issue were prescription medications used to treat the overproduction of vascular endothelial growth factor (VEGF). VEGF is a naturally occurring protein but, if overproduced, can lead to eye disorders, including permanent blindness. Both Regeneron and Novartis produce medication to combat overproduction of VEGF. The first form of anti-VEGF medications developed was packaged into vials and administered in a two-step process where a physician draws the product into a syringe then injects the product into the patient’s eye. However, a newer version of anti-VEGF drugs come in a prefilled syringe (PFS) designed to be administered in one step. The PFS packaging carries a significantly lower risk of complications and infections. PFSs have become the “preferred way [to] administer [] anti-VEGF medications.” Novartis moved to dismiss the complaint under Fed. R. Civ. P. 12(b)(6). After the district court granted the motion, Regeneron appealed.

The district court reasoned that original and newer products competed in the same market because they were the exact same medication, just sold in different forms. The Second Circuit disagreed. PFSs reduce the likelihood of complications and have become the preferred form of administration for treatment of VEGF overproduction over vials. The Second Circuit concluded that the district court improperly focused its analysis on whether the two products were “functional substitutes” and not on whether they were “economic substitutes.” The Second Circuit concluded that the district court had applied the improper standard for the relevant market and should instead consider whether the two drugs are economic substitutes. That is to say, the district court should look to whether the different packaging for the VEGF treatments are reasonably interchangeable by consumers. Regeneron alleged they are not due to PFSs’ preferred status among physicians (although PFSs are more costly than vials).

As to the state law claims, the district court dismissed Regeneron’s tortious interference claims as untimely. On appeal, Regeneron argued that Novartis should be equitably estopped from invoking the statute of limitation because the defendants “took steps to prevent Regeneron from learning of Novartis’s tortious interference until after the statute of limitation period had expired.” The Second Circuit found that Novartis concealed a co-inventor’s role in the procurement of a patent, which Regeneron only found out about during subsequent patent litigation, and that such concealment was in violation of a contract. Thus, the Court “conclude[d] that [Regeneron’s] allegations were sufficient to permit Regeneron to invoke equitable estoppel.” Additionally, the complaint “plausibly alleged a claim for tortious interference with contract.”



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All That Glitters: Use of Registered Mark To Describe Watch Color Was Fair Use

by | Mar 28, 2024 |

The US Court of Appeals for the Second Circuit affirmed a district court’s grant of summary judgement to a luxury-watchmaker defendant, holding that its use of a registered and incontestable trademarked term was fair use because it was used descriptively and in good faith. Solid 21, Inc. v. Breitling U.S.A., Inc., Case No. 22-366 (2d Cir. Mar. 14, 2024) (Wesley, Sullivan, JJ.) (Park, J., dissenting). The case is notable for its analysis of the fair use defense’s good faith prong, which, as the Second Circuit majority notes, “is not litigated frequently.” This was also the element that provoked Judge Park’s dissent, who argued that the majority’s analysis attempts to resolve factual disputes about Breitling’s intentions that should, instead, go to a jury.

“Red gold” and “rose gold” are terms used to describe a gold-copper alloy that causes gold to have a pinkish hue. Sellers of men’s watches sometimes prefer the term “red gold” because “rose gold” sounds effeminate. Solid 21 is a luxury watch and jewelry business that sells a collection of jewelry and watches under the RED GOLD mark, which was registered in 2003 and now has incontestable status. Breitling is a Swiss company that makes and sells luxury watches, some of which it advertises as available in “red gold,” among other color choices. Solid 21 filed a trademark infringement suit against Breitling, alleging that its use of the term “red gold” was “likely to cause confusion, reverse confusion, mistake, and/or deception as to the source” of Breitling’s watches. Breitling moved for summary judgment on the grounds that the term “red gold” was generic, and the trademark registration was invalid, or alternatively, that its use of the term fell under the Lanham Act’s fair use defense, which allows use of a protected mark to describe one’s goods so long as the use is in good faith and not used as a mark.

Initially, the district court denied Breitling’s motion for summary judgment, finding that Breitling could have used terms like “rose gold” to describe its products and thus did not satisfy the descriptive use requirement. However, on reconsideration, the district court decided that the mere existence of alternative terms for the alloy did not preclude summary judgment, and that Breitling’s materials showed clearly that it was using the term “red gold” descriptively to indicate hue. The district court also found that Breitling satisfied the good faith element, even if Breitling was aware of Solid 21’s RED GOLD mark. Solid 21 appealed.

The Second Circuit affirmed, finding that Breitling’s advertising materials clearly showed that it used the term “red gold” as a descriptor for color and not as a mark. The Court rejected the argument that this conclusion as to descriptive use was undermined by the availability of the term “rose gold” as an alternative descriptor and pointed out that Solid 21 bears the risk of some consumer confusion in choosing to trademark a descriptive term that describes a color of metal. Finally, the Court found that Breitling’s use of [...]

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Strong Signal: Personal Jurisdiction Over Foreign Defendant Based on Confluence of Factors

by | Mar 21, 2024 |

The US Court of Appeals for the Fifth Circuit concluded that a district court had personal jurisdiction over a foreign defendant’s website that purposefully targeted a US-based audience. DISH Network, LLC v. Bassam Elahmad, Case No. 23-20180 (5th Cir. Mar. 8, 2024) (Willett, Wilson, Ramirez, JJ.) (per curiam).

DISH Network sued Bassam Elahmad, a German resident doing business as Elahmad.com, for contributory copyright infringement, alleging that Elahmad unlawfully provided access to DISH’s copyrighted Arabic language channels. DISH alleged that Elahmad found, combined and organized illegal streams and loaded links onto Elahmad.com. DISH sent more than 60 copyright infringement notices to Elahmad, who never responded or removed the content. Although Elahmad resided in Germany, DISH argued that any court in the United States had jurisdiction over him under Fed. R of Civ. Pro. 4(k)(2) because his website reached into and targeted the US. DISH also argued that Elahmad was not subject to jurisdiction in any particular US state. The district court disagreed, concluding that it could not exercise personal jurisdiction over Elahmad because DISH’s complaint did not allege that any conduct had occurred in Texas. The district court twice denied DISH’s motions for default judgment and dismissed the complaint. DISH appealed.

The Fifth Circuit addressed the district court’s application of Rule 4(k)(2) and whether DISH had made a sufficient prima facie showing of specific personal jurisdiction to sustain its case.

Addressing Rule 4(k)(2), which provides personal jurisdiction in any US district court if a defendant is not otherwise subject to jurisdiction in a specific state, the Fifth Circuit clarified that for a finding of personal jurisdiction under this rule, the question is whether a defendant has sufficient minimum contact “with the entire United States, not a forum state.” The Fifth Circuit found that the district court’s analysis focused solely on Elahmad’s Texas contacts – not the entire US – and was therefore reversible error.

Turning to DISH’s burden to establish a prima facie case of personal jurisdiction, the Fifth Circuit noted that DISH had properly served Elahmad. DISH therefore only had to satisfy three other conditions: that its claims arose from federal law, that Elahmad was not subject to general jurisdiction in another state, and that exercising jurisdiction would be consistent with the US Constitution. The Court concluded that the first two conditions were easily met because copyright laws are federal and the burden to establish that another state has jurisdiction falls on the defendant. Elahmad had not answered the complaint or joined the appeal. Clearly, he had not met that burden.

The Fifth Circuit found that the third condition was “a closer question” that required consideration of whether Elahmad had sufficient ties to the US to satisfy constitutional due process concerns. Because DISH argued that the district court had only specific personal jurisdiction over the defendant (not general), DISH needed to show that Elahmad purposefully availed himself of “the privilege of conducting activities in the United States,” that DISH’s claim arose out of those contacts, and that it would be [...]

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District Court Subpoena Power Plays “Supporting Role” to PTO Rules

by | Mar 21, 2024 |

Addressing the subpoena power of district courts to compel evidence for use in US Patent & Trademark Office (PTO) proceedings, the US Court of Appeals for the Fourth Circuit upheld a district court’s decision (albeit on alternative grounds), holding that district courts’ authority to issue subpoenas in support of PTO proceedings is limited by the PTO Rules of Procedure. Xactware Solutions, Inc. v. Buildxact Software Ltd., Case No. 22-1871 (4th Cir. March 13, 2024) (Gregory, Harris, Floyd, JJ.)

Buildxact, an Australian company, filed a trademark application at the PTO for BUILDXACT. Xactware opposed the BUILDXACT application at the Trademark Trial & Appeal Board and requested to depose three of Buildxact’s officers via video. When Buildxact objected indicating it would only allow written depositions (citing the PTO rules, which state that foreign depositions must be in writing unless the parties stipulate otherwise or the deposing party shows good cause), Xactware subpoenaed Buildxact through service on Buildxact’s default agent – the PTO Director – for an in-person deposition of a Buildxact corporate representative.

Buildxact filed a motion in the district court to quash the subpoena. The district court magistrate judge granted Buildxact’s motion, finding that Buildxact, which has no office, employees, or regular business in or near Virginia, did not have sufficient contacts to qualify as “being within” the district. Xactware moved for a review of the order, but the district court agreed with the magistrate judge’s ruling. Xactware appealed.

Pursuant to 35 U.S.C. § 23, the PTO may establish its own rules for depositions in cases before the Board. Additionally, 35 U.S.C. § 24 grants the “clerk of any United States court for the district wherein testimony is to be taken for use in any contested case in the Patent and Trademark Office” the power to “issue a subpoena for any witness residing or being within such district, commanding him to appear and testify before an officer in such district authorized to take depositions and affidavits.”

Xactware argued that Buildxact is “within” the district because it has an agent designated to receive service of process there (i.e., the PTO Director). The PTO argued that even if Buildxact were “within” the district, the subpoena must still be quashed as the deposition was improper under the PTO rules. The Fourth Circuit agreed, noting that it consequently need not address whether Buildxact was “within” the district or not.

The Fourth Circuit held that the district court lacked the authority to issue a subpoena compelling Buildxact’s deposition because the deposition being sought was prohibited by PTO rules and would not be admissible in any PTO proceeding. Looking at the legislative history, the Fourth Circuit noted that the district court’s subpoena power under § 24 is only available to the extent the courts are empowered to aid the PTO: “Section 24 assigns a supportive role to the district courts to ensure the smooth functioning of the [PTO] procedures.” Moreover, the explicit language of § 24 requires that a district court can only subpoena testimony “for use [...]

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Be Cool: Don’t Construe the Construction

by | Mar 21, 2024 |

The US Court of Appeals for the Federal Circuit vacated and remanded a Patent Trial & Appeal Board decision after concluding that the patent owner’s proposed construction would require the parties to construe the construction. CoolIT Systems, Inc. v. Katherine Vidal, Director of the United States Patent & Trademark Office, Case No. 22-1221 (Fed. Cir. March 7, 2024) (Lourie, Bryson, Stark, JJ.) (nonprecedential).

CoolIT Systems owns a patent directed to a system for fluid heat transfer to cool electronic devices. The patent focuses on a heat exchange system comprising various components including a heat sink, a housing member and a compliant member. The patent claims priority from two provisional applications. Asetek Danmark petitioned for inter partes review (IPR) of the patent based on anticipation and obviousness. During the IPR proceeding, the parties disputed the meaning of the term “matingly engaged,” a term introduced in the later provisional application. To preserve validity, CoolIT argued that the term should be construed narrowly to mean “mechanically joined or fitted together to interlock.” Asetek sought a broader construction of “joined or fitted together to make contact,” which would encompass all methods of joining two surfaces.

The Board found both interpretations extreme and partially construed the term as being satisfied when at least a portion of the compliant member fits within the recessed region of the housing member. Despite agreement on the term “mate” to mean “join or fit together,” there was disagreement on the term “engage.” However, the Board did not determine whether “matingly engaged” could encompass forms of engagement beyond fitting.

The Board found that the cited prior art suggested a compliant member fitting the housing, thus rendering the claims obvious. CoolIT appealed. The US Patent & Trademark Office (PTO) intervened after Asetek withdrew from the appeal based on settlement.

CoolIT argued that the Board’s interpretation was flawed, and that the prior art did not meet the requirements of the “matingly engaged” limitation irrespective of the interpretation adopted. CoolIT contended that its proposed construction aligned with the invention’s purpose and properly distinguished between the 2007 and 2011 provisional applications. CoolIT also argued that the compliant member must partition features to control coolant flow, necessitating a specific type of joining or fitting.

In response, the PTO argued that CoolIT’s proposed construction read limitations from the specification into the claim. The PTO contended that neither the claims nor the specification required “interlock” and disputed CoolIT’s interpretation of the 2007 provisional application. The PTO did not propose an alternative construction, however.

The Federal Circuit concluded that “matingly engaged” should properly be construed as “mechanically joined or fitted together,” as that construction accurately reflected the term’s meaning and aligned with arguments presented by both parties. The Court rejected CoolIT’s proposal to add the word “interlock” because it would cause more confusion than clarity, noting that even CoolIT and the PTO still disagreed over what the term “interlock” meant and thus adding that term to the construction would provide little guidance.

The Federal Circuit found that the Board [...]

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Patenting Web Advertising? Ask Alice, I Think She’ll Know

by | Mar 14, 2024 |

In a wide-ranging opinion, the US Court of Appeals for the Federal Circuit affirmed the district court’s grant of summary judgment of invalidity for lack of patent eligible subject matter under 35 U.S.C. § 101 with respect to claims directed to web-based advertising. Chewy, Inc. v. International Business Machines, Corp., Case No. 22-1756 (Fed. Cir. March 5, 2024) (Moore, Stoll, Cunningham, JJ.)

Chewy filed suit against International Business Machines (IBM) seeking a declaration that Chewy’s website did not infringe multiple patents related to web-based advertising. IBM responded by filing infringement counterclaims. After claim construction and discovery, the district court granted Chewy’s motions for summary judgment of invalidity for lack of patent eligible subject matter with regard to the asserted claims of one patent and noninfringement of the asserted claims of a second patent.

The claims of the first patent relate to providing a targeted advertisement from an “information repository” to a user based on the user’s internet search. In affirming the district court, the Federal Circuit first determined that, under Alice step 1, “[t]he claims broadly recite correlating advertisements with search results using a generic process.” The Court noted that the claims “merely recite the concept of identifying advertisements based on search results, without any specificity as to how this is accomplished,” and are directed to “the abstract idea of identifying advertisements based on search results.”

Turning to Alice step 2, the Federal Circuit found that the claims used a generic database and conventional processing steps, and “claimed use of a conventional repository for storing advertisements and associated search results in a well-known way.” Because “the claims recite the generic process for obtaining search results from a search query and using the search results to identify advertisements,” they failed under Alice step 2 and did not claim patent eligible subject matter under § 101.

Regarding the second asserted patent, the district court construed the claim term “selectively storing advertising objects at a store established at the reception system” as requiring the “advertising objects” to be “pre-fetched” and retrieved before the user requested a page on a website. Because it was undisputed that “Chewy retrieves advertisements in response to a user requesting a page” and not before, the district court ruled that Chewy’s website did not meet this claim limitation. Looking to the intrinsic claim construction evidence, the Federal Circuit held that the district court’s claim construction was amply supported by the specification and prosecution history and affirmed the district court’s grant of summary judgment of noninfringement. Of note, the Court explained that the specification made multiple references to pre-fetching as being part “of the present invention” and therefore limited the scope of the claims.

With respect to one asserted claim of the second patent, which did not include the limitation at issue, the district court found that Chewy’s website did not practice the limitation of “establishing characterizations for respective users based on the compiled data” because “the record undisputedly showed they deliver advertisements based on the page the user is currently viewing, [...]

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