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Speculation of Harm Isn’t Standing: Not Every Adverse Board Decision Is Ticket to Appeal

by | Jun 12, 2025 | ,

After assessing whether a patent owner had standing to appeal the Patent Trial & Appeal Board’s final written decision, the US Court of Appeals for the Federal Circuit found no injury in fact to support Article III jurisdiction and dismissed the appeal. Dolby Labs. Licensing Corp. v. Unified Patents, LLC, Case No. 23-2110 (Fed. Cir. June 5, 2025) (Moore, Clevenger, Chen, JJ.)

Dolby owns a patent covering a prediction method involving an in-loop filter. Unified Patents, claiming to be the sole real party in interest (RPI), filed an inter partes review (IPR) challenging several patent claims as anticipated and obvious. Dolby contested the challenge, identifying nine additional entities it argued should have been named as RPIs (alleged RPIs). The Board declined to rule on Dolby’s inclusion, however, and proceeded with Unified as the sole RPI.

In its final written decision, the Board found that Unified failed to establish the unpatentability of any challenged claims. Consistent with the US Patent & Trademark Office’s practice, it also declined to address the RPI dispute, finding it immaterial – there was no evidence the alleged RPIs were estopped from filing their own IPRs later or that Unified had advantageously or strategically omitted them. Dolby appealed.

The Federal Circuit explained that when it reviews final Board decisions, its jurisdiction is constrained by Article III’s “Cases” and “Controversies” requirement. To establish standing, an appellant must demonstrate:

  • A concrete and particularized injury in fact that is actual or imminent, not speculative.
  • A causal link between the injury and the appellee’s challenged conduct.
  • A likelihood that the injury will be redressed by a favorable ruling.

Dolby asserted standing to appeal the Board’s refusal to address the RPI dispute based on three grounds:

Its statutory right to appeal as a “dissatisfied” party under 35 U.S.C. § 319.

  • The denial of its right to information under 35 U.S.C. § 312(a)(2).
  • An injury in fact arising from potential breaches of license agreements by the alleged RPIs and possible conflicts of interest involving the Board’s administrative patent judges.

The Federal Circuit rejected Dolby’s argument that it had a right to appeal based solely on dissatisfaction with the Board’s decision. The Court explained that the right to appeal a Board decision under the America Invents Act (AIA) requires Article III standing. The Court also dismissed Dolby’s argument for a statutory right to RPI information, finding that the AIA does not create an informational right. The Court explained that unlike statutes such as the Federal Advisory Committee Act or the Federal Election Campaign Act, which expressly grant public access to information, the AIA lacks a public access provision and explicitly limits judicial review of IPR-related determinations, including RPI disclosures.

As to Dolby’s right to appeal the Board decision, the Federal Circuit found Dolby’s argument too speculative to establish standing, citing four key deficiencies:

Dolby failed to assert that any alleged RPIs were party to license agreements, undermining its claim of potential breach.



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X-Ray Vision: Court Sees Through Implicit Claim Construction

by | Jun 5, 2025 |

The US Court of Appeals for the Federal Circuit reversed the Patent Trial & Appeal Board’s final determination that challenged patent claims were not unpatentable, finding that the Board’s decision relied on an erroneous implicit claim construction. Sigray, Inc. v. Carl Zeiss X-Ray Microscopy, Inc., Case No. 23-2211 (Fed. Cir. May 23, 2025) (Dyk, Prost, JJ.; Goldberg, Chief Distr. J., sitting by designation).

Zeiss owns a patent related to X-ray imaging systems that incorporate projection magnification. Sigray filed a petition requesting inter partes review (IPR) of all claims in the patent. After institution, the Board issued its final written decision, which declined to hold any of the challenged claims unpatentable. Sigray appealed.

On appeal, Sigray argued that the claims were unpatentable based on a single prior art reference, Jorgensen. The Jorgensen reference “describes a system that uses an X-ray source to generate an X-ray beam, which then passes through a sample before being received by a detector.” Sigray argued that Jorgensen anticipated or rendered the challenged claims obvious. The parties agreed that Jorgensen explicitly disclosed all the limitations of the independent claim except for one reading “a magnification of the projection X ray stage . . . between 1 and 10 times.”

The parties’ arguments centered on whether the magnification limitation was inherently disclosed in Jorgensen. The Board concluded that “viewing the record as a whole, . . . [Sigray] has not shown persuasively that Jorgensen inherently discloses projection magnification within the claimed range. Sigray argued, and the Federal Circuit agreed, that the Board’s findings incorrectly relied on a flawed understanding of the claimed range. In Sigray’s view, “the Board implicitly and incorrectly construed the limitation ‘between 1 and 10’ to exclude unspecified, small divergence resulting in projection magnifications only slightly greater than 1.” This was illustrated by the Board’s determination that Sigray “failed to show that the . . . X-ray beam in Jorgensen diverges enough to result in projection magnification between 1 and 10 times.”

The Federal Circuit found that the Board’s use of the term “enough” indicated that the evidence it relied on supported a finding of some divergence in the X-ray beams. Because the beams were not completely parallel, the Court reasoned that some magnification necessarily resulted, and that even a miniscule amount (as disclosed in the prior art) fell within the claimed magnification range of 1 to 10. Since the Board made only one evidence-supported finding relevant to anticipation, the Court reversed on the independent claim and two dependent claims without remand. However, the Court remanded the case to the Board to determine whether the three remaining challenged claims, which recited further material limitations, would have been obvious.



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Clickbait: Actual Scope (Not Intended Scope) Determines Broadening Reissue Analysis

by | May 15, 2025 |

The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board’s rejection of a proposed reissue claim for being broader than the original claim, denying the inventors’ argument that the analysis should focus on the intended scope of the original claim rather than the actual scope. In re Kostić, Case No. 23-1437 (Fed. Cir. May 6, 2025) (Stoll, Clevenger, Cunningham, JJ.)

Miodrag Kostić and Guy Vandevelde are the owners and listed inventors of a patent directed to “method[s] implemented on an online network connecting websites to computers of respective users for buying and selling of click-through traffic.” Click-through links are typically seen on an internet search engine or other website inviting the user to visit another page, often to direct sales. Typical prior art transactions would require an advertiser to pay the search engine (or other seller) an upfront fee in addition to a fee per click, not knowing in advance what volume or responsiveness the link will generate. The patent at issue discloses a method where the advertiser and seller first conduct a trial of click-through traffic to get more information before the bidding and sale process. The specification also discloses a “direct sale process” permitting a seller to bypass the trial and instead post its website parameters and price/click requirement so advertisers can start the sale process immediately.

The independent claim recites a “method of implementing on an online network connecting websites to computers of respective users for buying and selling of click-through traffic from a first exchange partner’s web site.” The claim requires “conducting a pre-bidding trial of click-through traffic” and “conducting a bidding process after the trial period is concluded.” A dependent claim further requires “wherein the intermediary web site enables interested exchange partners to conduct a direct exchange of click-through traffic without a trial process.”

The patent was issued in 2013, and the inventors filed for reissue in 2019. The reissue application cited an error, stating that the “[d]ependent claim [] fails to include limitations of [the independent] claim,” where the dependent claim “expressly excludes the trial bidding process referred to in the method of [the independent] claim,” which would render it invalid under 35 U.S.C. § 112. To fix the error, the inventors attempted to rewrite the dependent claim as an independent claim that omitted a trial process.

The examiner issued a nonfinal Reissue Office Action rejecting the reissue application as a broadening reissue outside of the statutory two-year period. The examiner found that the original dependent claim is interpreted to require all steps of the independent claim, including the trial period, and further to require a direct sale without its own trial, beyond the trial claimed in the independent claim. The inventors attempted to rewrite the dependent claim as the method of independent claim with “and/or” language regarding the trial process versus direct to sale process. The amendment was rejected for the same reasons. The Board affirmed on appeal.

Whether amendments made during reissue enlarge the scope of [...]

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No Article III Appellate Standing Under the Sun

by | May 15, 2025 |

The US Court of Appeals for the Federal Circuit dismissed Incyte’s appeal of a Patent Trial & Appeal Board decision, holding that a disappointed validity challenger lacked appellate standing to challenge the Board’s final written decision. Incyte Corp. v. Sun Pharmaceuticals Industries, Inc., Case No. 23-1300 (Fed. Cir. May 7, 2025) (Moore, C.J.; Hughes, Cunningham, JJ.) (Hughes, J., concurring).

After the Board upheld the validity of challenged claims of a patent owned by Sun Pharmaceuticals in a post-grant review proceeding (PGR), Incyte appealed and sought a determination that the claims were unpatentable. Sun Pharmaceuticals challenged whether Incyte had Article III standing to support an appeal to the Federal Circuit based on a lack of injury-in-fact.

The Federal Circuit focused on its jurisdiction to hear the appeal as a threshold issue and whether Incyte, as the party seeking review, met its burden of establishing Article III standing at the time it filed its appeal.

As context, the Federal Circuit noted that standing requires a concrete, actual, or imminent injury that is traceable to the challenged conduct and likely to be redressed by the court’s decision. Incyte asserted it had standing to appeal based on potential infringement liability and under the competitor standing doctrine.

Addressing potential infringement liability, the Federal Circuit noted Incyte’s reliance on a supplemental declaration from an in-house business development leader submitted during briefing. Noting that Incyte’s Article III standing was “not self-evident,” the Court ruled that Incyte should have presented evidence prior to its reply brief and declined to consider the supplemental evidence. Incyte was on notice that its appellate standing was challenged, and that evidence of its standing should have been submitted at the earliest possible opportunity. Finding no good cause for the delay, the Court declined to exercise its discretion to consider Incyte’s supplemental evidence and, based only on earlier submitted evidence, found that Incyte failed to establish that it had “concrete plans for future activity” that would create a “substantial risk of future infringement.”

In its discussion of the competitor standing doctrine, which allows competitors to challenge patents that could harm their competitive position, the Federal Circuit found the doctrine inapplicable because Incyte failed to show it would suffer economic harm from the Board’s ruling on patent validity. Rather, the Board’s ruling upholding specific patent claims “does not, by the operation of ordinary economic forces, naturally harm a [challenger] just because it is a competitor in the same market as the beneficiary of the government action (the patentee).” As the Court explained, “it is not enough to show a benefit to a competitor to establish injury in fact; the party seeking to establish standing must show a concrete injury to itself.”

The Federal Circuit held that because Incyte had not shown it was currently engaged in or had non-speculative plans to engage in conduct covered by the challenged patent, it was unable to establish injury-in-fact.

In his concurrence, Judge Hughes stated that while Incyte lacked Article III standing, he believed that Federal Circuit precedent was [...]

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New Administration, Same Patent Reform Bill

by | May 8, 2025 |

A bipartisan group of senators and congressional representatives reintroduced the Patent Eligibility Restoration Act (PERA), which aims to reform the law of patent eligibility under 35 U.S.C. § 101. PERA seeks to address the challenges posed by recent Supreme Court decisions and restore clarity and predictability in the US patent system.

PERA preserves the existing categories of subject matter currently enumerated in § 101 but adds several categories of excluded subject matter. PERA proposes to eliminate all judicial exceptions to patent eligibility, specifying that certain categories, such as mathematical formulas that are not part of an invention, processes that a human could perform, mental processes, unmodified human genes, and unmodified natural material, are not eligible for patents.

A separate bipartisan group of senators and congressional representatives reintroduced the Promoting and Respecting Economically Vital American Innovation Leadership (PREVAIL) Act, which aims to protect and increase the value of US intellectual property rights by making significant reforms to the Patent Trial & Appeal Board.

PREVAIL seeks to limit Board challenges to entities that have been sued or threatened with a patent infringement lawsuit, close the statutory bar joinder loophole to prevent time-barred entities from joining instituted inter partes review (IPR) proceedings, and prevent serial petitions by applying estoppel at the time the challenge is filed instead of when the Board issues its final written decision.



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Transatlantic Terminology: Skilled Artisan Could Equate UK, US Word Meanings

by | Apr 24, 2025 |

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board unpatentability determination, finding that a skilled artisan would have found the term “sterile” in a UK publication to mean the same as the term “sterilized” in the United States. Sage Products LLC v. Stewart, Case No. 23-1603 (Fed. Cir. Apr. 15, 2025) (Reyna, Cunningham, Stark, JJ.)

Sage owns two patents related to a sterilized chlorhexidine product in a package, such as an applicator filled with an antiseptic composition for disinfecting skin. Becton, Dickinson and Company petitioned for inter partes review (IPR) of both patents. The Board relied on four key pieces of prior art, including one that was a UK publication, to find the challenged claims unpatentable. In instituting the IPR and evaluating the petition, the Board construed the term “sterilized” to mean that “the component or composition has been subjected to a suitable sterilization process such that sterility can be validated.” In the final written decision, the Board found that a skilled artisan at the time of the invention would have known, through education and experience, that the term “sterile,” as used in the UK prior art publication, is equivalent to the term “sterilized,” as used in the US and particularly in the Sage patents. Reviewing the totality of the evidence before it, including both parties’ experts’ reports and testimony, the Board determined the challenged claims were unpatentable. Sage appealed.

The Federal Circuit declined to overturn the Board’s findings, affirming the Board’s definition of a person of ordinary skill in the art and their understanding of the term “sterilized” at the time of the invention. The Court found that the Board did not ignore or disregard evidence but properly weighed the evidence before it, concluding that a skilled artisan having the education and experience required by the Board’s definition would know the differences between the US and UK regulatory standards for “sterile” and therefore would know that UK references to “sterile” items would satisfy the challenged claims’ requirement for “sterilized” items.



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Fintiv Guidelines for Post-Grant Proceedings Involving Parallel District Court Litigation

by | Apr 3, 2025 |

On March 24, 2025, the US Patent & Trademark Office (PTO) released new guidance that clarifies application of the Fintiv factors when reviewing validity challenges simultaneously asserted at the Patent Trial & Appeal Board and in district court or at the US International Trade Commission.

This guidance follows the PTO’s February 28, 2025, announcement reverting to its previous guidelines for discretionary denials of petitions for post-grant proceedings where district court litigation is ongoing. That announcement rescinded the PTO’s June 21, 2022, memorandum entitled “Interim Procedure for Discretionary Denials in AIA Post-Grant Proceedings with Parallel District Court Litigation,” which prevented the Board from rejecting validity challenges where there was “compelling evidence of unpatentability.”

Based on the new guidance, the Board is more likely to defer to the district court or the Commission if the Commission’s projected final determination date is earlier than the deadline for the Board’s final written decision. The PTO pointed out that a patent challenger’s stipulation not to raise the same invalidity arguments in other proceedings if the PTO institutes an inter partes review or post grant review is highly relevant but not dispositive.

This change in policy increases the likelihood that the Board will grant discretionary denials in situations involving parallel district court or Commission proceedings.



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Detour Ahead: New Approach to Assessing Prior Art Rejections Under § 102(e)

by | Apr 3, 2025 | ,

The US Court of Appeals for the Federal Circuit established a more demanding test for determining whether a published patent application claiming priority to a provisional application is considered prior art under pre-America Invents Act (AIA) 35 U.S.C. § 102(e) as of the provisional filing date, explaining that all portions of the published patent application that are relied upon by the US Patent & Trademark Office (PTO) to reject the claims must be sufficiently supported in the provisional application. In re Riggs, Case No. 22-1945 (Fed. Cir. Mar. 24, 2025) (Moore, Stoll, Cunningham, JJ.)

Several inventors who work for Odyssey Logistics filed a patent application directed to logistics systems and methods for the transportation of goods from various shippers by various carriers across different modes of transport (e.g., by rail, truck, ship, or air). PTO rejected the application under § 102(e) in view of Lettich, which claimed the benefit of a provisional application (Lettich provisional), and as obvious in view of Lettich in combination with the Rojek reference.

The inventors appealed the Lettich rejections to the Patent Trial & Appeal Board, arguing that Lettich did not qualify as prior art under § 102(e). The Board initially agreed with the inventors, but the Examiner assigned to the application requested a rehearing, asserting that the Board applied the incorrect standard for § 102(e) prior art. The Board ultimately issued its decision on the Request for Rehearing, stating that it had jurisdiction over the Examiner’s request and that the Examiner’s arguments regarding Lettich’s status as prior art under § 102(e) “[we]re well taken.” The Board amended its original decision “to determine that Lettich is proper prior art against the instant claims.” The Board then reviewed and affirmed the Examiner’s anticipation and obviousness rejections. The inventors appealed.

The Federal Circuit vacated and remanded the Board’s decision. With respect to whether Lettich qualified as § 102(e) prior art, the Court found that the Board’s analysis was incomplete. The Court concluded that the Board correctly applied the test set forth in the Federal Circuit’s 2015 decision in Dynamic Drinkware v. National Graphics by determining that the Lettich provisional supported at least one of Lettich’s as-published claims. However, the Court found that this test was insufficient because all portions of the disclosure that are relied upon by the PTO to reject the claims must also be sufficiently supported in the priority document. Although the PTO asserted that the Board had conducted this additional analysis, the Federal Circuit disagreed and vacated and remanded for the Board to determine whether the Lettich provisional supported the entirety of the Lettich disclosure that the Examiner relied on in rejecting the claims.



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When “It’s Obvious” Just Isn’t Enough: Challenger’s Burden to Prove Obviousness

by | Mar 27, 2025 |

The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board’s decision that a patent was not obvious because the petitioner failed to show sufficient support of obviousness based on prior art. AMP Plus, Inc. v. DMF, Inc., Case No. 23-1997 (Fed. Cir. Mar. 19, 2025) (Lourie, Bryson, Reyna, JJ.)

DMF owns a patent directed to a compact recessed lighting system designed for installation in a standard electrical junction box. In 2019, AMP, doing business as ELCO, petitioned for inter partes review of several claims of the patent on three grounds of unpatentability:

  • Anticipation by a prior reference
  • Obviousness based on a combination of two references
  • Further obviousness based on an additional source.

The Board found that one claim was anticipated but ruled that ELCO failed to prove unpatentability of the other claims, including the claim at issue on appeal. The claim at issue describes a system with wires connected to a driver and a first connector, coupled to a second connector that in turn is connected to the building’s electrical system. This specific connection was referred to as “Limitation M.” ELCO appealed. In that earlier appeal (2022), the Federal Circuit affirmed the Board’s ruling on all claims except the claim at issue and remanded the case back to the Board for further analysis.

On remand, the Board concluded that ELCO failed to demonstrate the unpatentability of the claim at issue because ELCO’s petition lacked a substantive analysis of Limitation M. The Board found ELCO’s argument that a prior art marine lighting system could be adapted for the claimed building use unsupported by evidence and ruled that the claim at issue was not obvious. Again, ELCO appealed.

ELCO raised two main arguments. First, it argued that the Board erred in not determining that the claim at issue was anticipated by a prior reference, as the Board had previously found another claim to be anticipated by the same reference. The Federal Circuit rejected this argument because ELCO had only challenged the claim at issue on the basis of obviousness in its original petition, not anticipation. Since the issue of anticipation was not raised in the petition, the Court determined that ELCO could not introduce this new ground of unpatentability on appeal.

Second, ELCO argued that its petition had sufficiently demonstrated the obviousness of Limitation M based on the prior references. The Federal Circuit disagreed, finding that ELCO’s petition did not adequately address the specific requirement for coupling the system to a building’s electrical infrastructure. The petition failed to discuss how the recessed lighting system would be installed in a building, and the references cited did not provide adequate support for the argument of obviousness for this particular limitation.

The Federal Circuit emphasized that it was not the Board’s responsibility to supplement the petitioner’s arguments or search for evidence to support an inadequately supported claim challenge. The Court reiterated that an obviousness analysis does not require the Board to fill gaps in the petitioner’s original [...]

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Even Jepson Preambles Require Written Description Support

by | Mar 27, 2025 |

The US Court of Appeals for the Federal Circuit found a Jepson claim unpatentable where the specification did not provide adequate written description for the portion of the claim purporting to recite what was already well known in the prior art. In re Xencor, Inc., Case No. 24-1870 (Fed. Cir. Mar. 13, 2025) (Hughes, Stark, Schroeder, JJ.)

Xencor filed a patent application claiming a modified anti-C5 antibody treatment with certain amino acid substitutions that provide for longer serum half-lives and reduce the need for more frequent treatment. The application included:

  • A Jepson claim reciting, “[i]n a method of treating a patient by administering an anti-C5 antibody with an Fc domain, the improvement comprising” certain amino acid substitutions, wherein the modified antibody has “increased in vivo half-life.”
  • A non-Jepson claim directed to “a method of treating a patient by administering an anti-C5 antibody comprising” certain amino acid substitutions, wherein the modified antibody “has increased in vivo half-life.”

The specification provided one example of an anti-C5 antibody, 5G1.1, and three high-level examples of potential uses for anti-C5 antibodies. The examiner rejected the claims for lack of written description. Xencor unsuccessfully appealed the rejection to the Patent Trial & Appeal Board. Xencor then unsuccessfully petitioned the Board for reconsideration. Xencor appealed to the Federal Circuit, which resulted in a remand to the Board’s Appeals Review Panel (ARP).

The ARP concluded that Jepson claim preambles require written description support and that the preamble language of “treating a patient” was limiting – even without the Jepson claim format – because it gave life and meaning to the claim recitations “increased in vivo half-life” and “administering.” Because the specification did not provide a representative number of species to support the broad genus of anti-C5 antibodies, a description of conditions that can successfully be treated with an anti-C5 antibody, or even a single working example describing treatment with an anti-C5 antibody with the claimed modifications, the ARP found that the claims lacked written description and that Xencor had not shown that anti-C5 antibodies were well known. Xencor again appealed, arguing that “treating a patient” was not limiting and that Jepson preambles do not require written description support.

With respect to the preamble of the method claim, the Federal Circuit noted that Xencor agreed that the “administering” portion was limiting but nonetheless argued that “treating a patient” was not. Although a preamble can be split into limiting and non-limiting parts, the Court reasoned that the preamble here could not be neatly packaged into separate portions because the phrase “treating a patient” was directly connected through the word “by” to the phrase “administering an anti-C5 antibody,” and each phrase gave meaning to the other. The Court further explained that the entire preamble provided the raison d’être of the claimed method: When a patient is treated with the modified anti-C5 antibody, the treatment lasts longer, reducing the frequency of treatments. Accordingly, the Court agreed with the ARP that the recitation “treating a patient” was limiting.

The Federal Circuit [...]

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