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Munich Court Addresses Implementer’s Obligation To Provide Security in FRAND Negotiations

by and | Apr 17, 2025 | ,

The Munich Higher Regional Court issued a decision concerning the fair, reasonable, and nondiscriminatory (FRAND) negotiation process and an implementer’s obligation to provide security if a license offer for standard essential patents (SEPs) is rejected. HMD Global v. VoiceAge, Case No. 6 U 3824/22 Kart, (Judgment of 20 March 2025).

In this case, the Munich Higher Regional Court attempted to fill a gap left by the Court of Justice of the European Union (CJEU) in Huawei v. ZTE regarding an implementer’s obligation to provide adequate security for royalties. This obligation arises when an implementer rejects a SEP holder’s license offer and the SEP holder rejects the implementer’s counteroffer, so there is no agreement on a license.

The Munich Court found that the implementer, HMD Global, provided an inadequate security that was based on HMD Global’s lower counteroffer. The Court explained that it is the SEP holder’s, here VoiceAges, final offer (i.e., the requested royalty) that is determinative for calculating the security amount that an implementer should provide. This is because a willing licensee must accept the SEP holder’s offer if a court declares it to be FRAND and the royalties subject to this offer must be covered by the security. The Court emphasized that an implementer can only establish that it is a willing licensee by making a counteroffer and providing adequate security after rejecting the offer.

However, the Munich Court left open the issue of whether security must be provided if the SEP holder’s final offer is obviously not FRAND, noting that there may be “special cases” where the SEP holder’s final offer may not be determinative of the security without further defining those cases.

The CJEU’s Guidelines to FRAND Negotiations Are Not a Rigid Set of Rules

The Munich Court also took a critical stance in response to the European Commission’s amicus curiae brief and found that the FRAND guidelines set by the CJEU in Huawei v. ZTE are not to be viewed as a rigid set of rules but rather as a “dynamic concept for negotiation.” A court is not limited to assessing the FRAND defense by strictly examining in sequence each step of the CJEU’s guidelines, which includes the following:

  • The SEP holder must send a notice of infringement to the implementer.
  • The implementer must declare to be a willing licensee.
  • The SEP holder must make a FRAND offer.
  • If the offer is not FRAND, the implementer is allowed to reject it but must make a counteroffer.
  • The implementer must provide adequate security for royalties if the SEP holder rejects the implementer’s counteroffer.

The European Commission argued that a court must examine each step before moving on to the next one. This means that, for example, once a court has found that the implementer is a willing licensee, the court must leave the implementer’s subsequent (possibly non-FRAND) conduct out of consideration and cannot undermine the implementer’s established willingness to take a license. A court must then assess whether [...]

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Prosecution Disclaimer Alive and Well, Especially in Closed Claim

by | Apr 17, 2025 |

The US Court of Appeals for the Federal Circuit affirmed a district court’s noninfringement determination, finding that the presence of a disclaimed compound in the accused product precluded infringement. Azurity Pharm., Inc. v. Alkem Lab’ys Ltd., Case No. 23-1977 (Fed. Cir. Apr. 8, 2025) (Moore, Chen, Murphy, JJ.)

Azurity owns a patent directed to a nonsterile, stable liquid formulation of vancomycin hydrochloride, specifically designed for oral administration to treat Clostridium difficile infections. Following Alkem’s submission of an Abbreviated New Drug Application (ANDA), Azurity brought a Hatch-Waxman Act claim against Alkem for infringement of certain claims of the patent. The district court found that Azurity had disclaimed the presence of propylene glycol in the claimed formulation during the prosecution. Since Alkem’s ANDA product contained propylene glycol, the district court held that it did not infringe. Azurity appealed.

The Federal Circuit affirmed, focusing on the patent’s prosecution history and noting that Azurity used the lack of propylene glycol to distinguish its claimed invention from the prior art. The Court noted that this distinction was made during prosecution multiple times in response to the examiner’s rejections, and that Azurity had added negative claim limitations that specifically omitted propylene glycol from the scope of the claims.

The Federal Circuit also noted that Azurity used a “consisting of” transitional phrase to narrow the claims and relied on the closed transition to overcome the prior art. The Court explained that “consisting of” is a closed transition that limits the claim scope to only the recited components. By using this transition and not including propylene glycol as one of the claim components, Azurity effectively disclaimed propylene glycol from the invention. Therefore, the Court found that omission of propylene glycol during patent prosecution was “clean, unambiguous, and complete.”

Azurity argued that a pretrial stipulation between the parties, which stated that “[s]uitable flavoring agents for use in the asserted claims include flavoring agents with or without propylene glycol,” should preclude the application of the disclaimer. The Federal Circuit did not find this argument persuasive, concluding that the stipulation did not alter the clear and unambiguous disclaimer made during prosecution, nor did it affect the noninfringement finding. Since Alkem’s ANDA product contained propylene glycol and Azurity disclaimed inclusion of propylene glycol, there was no infringement.



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When Is a Trade Secret Accessible? As Soon as It Can Be Reverse Engineered

by | Apr 10, 2025 |

Although the US Court of Appeals for the Federal Circuit upheld a damages award for trade secret misappropriation and breach of a confidentiality agreement, it found that the district court erred in its determination of when the trade secret became publicly accessible for the purpose of applying a reverse engineering defense. The Federal Circuit also vacated and remanded the prejudgment interest award, finding that interest should not accrue on future sales. ams-OSRAM USA Inc. v. Renesas Elect. America, Inc., Case No. 22-2185 (Fed. Cir. Apr. 4, 2025) (Taranto, Schall, Chen, JJ.)

In 2008 ams sued Renesas for patent infringement, trade secret misappropriation, and breach of contract for using information that ams revealed in confidence. In 2015 a jury found for ams, and the district court entered judgment for trade secret misappropriation damages, but not for breach of contract. The district court determined that the breach award was duplicative of the misappropriation award. On appeal, in 2018 the Federal Circuit affirmed Renesas’ liability for misappropriation on a more limited basis than had been presented to the jury. The Court vacated the misappropriation award and remanded, instructing that disgorgement of profits damages should be decided by the judge, not the jury.

On remand, ams argued that it was entitled to “re-elect its remedy” and narrowed to the misappropriation and contract claims, which required the case to be retried. The new jury also found in favor of ams. The district judge then determined the monetary award for trade secret misappropriation, consisting of disgorgement of profits for one product and exemplary damages of double that sum. On ams’s breach of contract claim, the jury awarded a reasonable royalty on sales of products, other than the one subject to disgorgement damages. ams was also awarded prejudgment interest on both its misappropriation and contract claims, and attorneys’ fees on its breach of contract claim. Both parties appealed.

Trade Secret Accessibility and Reverse Engineering

The district court ruled that ams’s trade secrets became accessible in January 2006 when Renesas successfully reverse engineered the trade secret embodied in ams’s product. The district court determined that the relevant inquiry for accessibility is what the misappropriator actually did rather than what the misappropriator or other parties could have done. Renesas argued that the trade secret first became accessible when it could have reverse engineered the trade secret in February 2005.

The Federal Circuit agreed with Renesas, explaining that the district court’s ruling was inconsistent with Texas law. Under Texas law, information that is generally known or readily available by independent investigation does not qualify as a trade secret. Citing Fifth Circuit precedent, the Federal Circuit emphasized that the public is free to discover and exploit trade secrets through reverse engineering of products in the public domain. The Court found that Renesas could have accessed ams’s trade secrets through proper and straightforward means by February 2005. While acknowledging that the trade secret may not have been immediately apparent through casual inspection, the Court pointed out that reverse engineering is a common [...]

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Impermissible Convoyed Sales Wash Away Damages Award

by | Apr 3, 2025 |

The US Court of Appeals for the Federal Circuit affirmed a district court’s finding of infringement but vacated its damages award because the award improperly included auxiliary products lacking any functional relationship to the infringed patent claim. Wash World Inc. v. Belanger Inc., Case No. 2023-1841 (Fed. Cir. Mar. 24, 2025) (Stark, Lourie, Prost, JJ.)

Belanger owns a patent related to a spray-type car wash system. A competitor, Wash World, filed for a declaratory judgment that its car wash system did not infringe the patent.

A jury returned a general verdict of infringement and awarded Belanger $9.8 million in lost profit damages. Wash World moved for judgment as a matter of law of noni  nfringement based on the positions it previously raised and challenged the damages award. Wash World argued that Belanger failed to prove entitlement to lost profits for convoyed sales. The district court rejected Wash World’s arguments. Wash World appealed, challenging the district court’s constructions of three claim terms that Wash World argued were dispositive to noninfringement and the damages award for improperly including nearly $2.6 million in ineligible convoyed sales.

The Federal Circuit concluded that for two of the three claim terms, the constructions Wash World argued for on appeal were materially different from the constructions it urged the district court to adopt. The Federal Circuit emphasized that while a party is not confined to the precise wording of the constructions it advances at the district court, it must still present essentially the same dispute on appeal. Finding no exceptional circumstances, the Court deemed Wash World’s appellate positions on the two claims to be forfeited. As to the remaining term, the Court found that while Wash World had preserved the issue for appeal, the district court’s interpretation was correct.

On the issue of remittitur, the Federal Circuit first found that Wash World had properly preserved the issue for appeal and that even if it had not, exceptional circumstances would justify reaching the merits. The Court stated that it could discern the precise damages the jury awarded based on convoyed sales, and that the requirements for lost profits on such sales were plainly not satisfied.

The Federal Circuit explained that entitlement to lost profits for convoyed sales exists only where the unpatented products (e.g., dryers sold together with a patented car wash system) and the patented product together constitute a “functional unit,” like parts of a complete machine. The Court found that no evidence in the record could support such a finding and that damages awarded for sales of the unpatented products were thus improper. The Court further rejected Belanger’s argument that the jury’s return of a general verdict insulated the award from further scrutiny. The Court noted that based on the evidence presented, it was overwhelmingly likely that the jury’s verdict included the impermissible damages for convoyed sales. Therefore, the Federal Circuit instructed the district court on remand to remit $2.6 million in damages corresponding to sales of the unpatented components.



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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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Hatch-Waxman Litigation Expenses Are Deductible Under Internal Revenue Code § 162(a)

by | Apr 3, 2025 |

The US Court of Appeals for the Federal Circuit upheld a US Court of Federal Claims ruling that Hatch-Waxman Act litigation expenses are ordinary and necessary business expenses under § 162(a) of the Internal Revenue Code, entitling an abbreviated new drug application (ANDA) filer to deduct litigation expenses incurred defending against a patent infringement lawsuit. Actavis Labs. FL, Inc. v. United States, Case No. 23-1320 (Fed. Cir. Mar. 21, 2025) (Chen, Cunningham, Stark, JJ.)

Actavis filed ANDAs with the US Food and Drug Administration (FDA) seeking approval to market and sell a generic version of a drug already offered for sale in the United States. Per the Hatch-Waxman Act, filing an ANDA is an act of patent infringement where the ANDA holder seeks FDA approval prior to the expiration of the new drug application (NDA) holder’s patent. Following Actavis’s filing, the NDA holder brought a patent infringement lawsuit against Actavis.

Actavis subsequently treated litigation expenses incurred in defending the patent infringement lawsuit as ordinary and necessary expenses. Actavis deducted those litigation expenses on its tax returns for that year. However, the Internal Revenue Service (IRS) considered these expenses to be nondeductible capital expenditures since they were incurred “in pursuit of an intangible capital asset: namely, FDA approval to lawfully market a generic drug product in this country.”

Actavis eventually paid its tax liability but then sued the IRS in the Court of Federal Claims to recover what Actavis considered an overpayment of its taxes. The claims court agreed with Actavis, holding that Hatch-Waxman litigation expenses were deductible as ordinary and necessary business expenses. The IRS appealed.

The Federal Circuit affirmed. When determining whether Hatch-Waxman litigation expenses are deductible under Code § 162(a), the Federal Circuit uses two tests to settle the issue: the “origin of the claim” test and the “most significant benefit” test. However, as the Court emphasized, regardless of which test applied, Actavis prevailed.

The Federal Circuit first explained that Actavis prevailed under either test because patent infringement (not the FDA approval process) is what triggers incurring litigation expenses. Further evidence that the “origin of the claim rests in the patentholder’s decision to sue, and not in the ANDA filer’s decision to seek drug approval from the FDA, is the fact that infringement litigation cannot provide the ANDA filer what it wants – only the FDA can,” the Court stated.

Relying on the Third Circuit’s 2023 decision in Mylan v. Comm’r of Internal Revenue, the Federal Circuit delved into the fairness aspect of allowing Hatch-Waxman litigation expenses to be deductible. Citing Mylan, the Court explained that generic manufacturers defending against patent infringement suits “obtain no rights from a successful outcome. They acquire neither the intangible asset of a patent nor an FDA approval.” The Court also noted that brand-name drug companies in Hatch-Waxman lawsuits may deduct litigation expenses incurred while enforcing their patent rights. “[I]mposing very different tax treatment on the warring sides in an ANDA dispute, as the Commissioner advocates, is at odds with the careful statutory [...]

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The Clear and Unmistakable Standard for Applying Prosecution Disclaimer

by | Apr 3, 2025 |

The US Court of Appeals for the Federal Circuit found that a district court misconstrued claim terms based on a misapplication of the clear and unequivocal disavowal standard and vacated its noninfringement decision. Maquet Cardiovascular LLC v. Abiomed Inc., Abiomed R&D, Inc., Abiomed Europe GMBH, Case No. 23-2045 (Fed. Cir. Mar. 21, 2025) (Reyna, Taranto, Cunningham, JJ.)

Maquet owns a patent related to a system that provides greater precision in deploying a blood pump to a patient’s circulatory system. The district court construed three patent terms. The district court construed the term “guide mechanism comprising a lumen” to include a negative limitation that the guidewire lumen “is not distal to the cannula.” The court justified this limitation by citing to the prosecution history of a related patent where Maquet disclaimed the broader claim by merely accepting the examiner’s proposed revisions. The district court also construed both guide wire terms in two other claims to include another negative limitation: “the guide wire does not extend through the free space in between the rotor blades.” The district court similarly justified this negative limitation by citing to the parent patent’s prosecution history, finding that Maquet had given up a broader version of the claim. The district court’s construction effectively limited the scope of Maquet’s claims to exclude the accused products, and the parties stipulated to the entry of a final appealable judgment of noninfringement. Maquet appealed.

Maquet argued that the district court erred in its construction of the three terms by misapplying the law of prosecution disclaimer. The Federal Circuit agreed, finding that the district court incorrectly relied on Maquet’s prosecution history to reach its conclusions on claim construction. The district court cited to an amendment made in a different (but related) patent prosecution and a different claim. The Federal Circuit explained that although the prosecution history of a related patent may be relevant, the claim limitations in the two applications must be similar in order for the prosecution disclaimer doctrine to apply. Here, the Court found that the amendment in the related patent was not sufficiently similar to the limitation at issue to constitute a disclaimer for the claim at issue. The related case claim did not claim a guide mechanism, nor did it require the lumen be in a specific position. The Federal Circuit found that the district court erred in its construction by improperly applying prosecution disclaimer.

The Federal Circuit also determined that the district court erred in its construction of the guide wire claim terms by applying prosecution disclaimer and interpreting a restriction on their scope. The Court found that while the prosecution history of the parent patent’s claims was sufficiently similar and thus relevant, Maquet did not disavow either claim’s scope during the relevant prosecution. The Court noted that mere silence in response to a notice of allowance typically does not rise to clear and unmistakable claim disavowal. The Court also observed that statements made during an inter partes review (IPR) proceeding may be used to support a [...]

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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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