Utility Patent

Federal Circuit, Utility Patent

PersonalWeb Technologies v. Google — Federal Circuit Applies Kessler Doctrine to Bar Relitigation of Patent Claims

The Federal Circuit applied the Kessler doctrine — a nineteenth-century rule of preclusion in patent law — to bar PersonalWeb from relitigating patent infringement claims against Amazon Web Services customers after PersonalWeb had previously lost in a suit against Amazon directly, holding that customers of an adjudicated non-infringer are protected from subsequent patent suits on the same technology.

Federal Circuit, Utility Patent

Wi-LAN v. Apple — Federal Circuit Addresses FRAND Comparable License Analysis and Royalty Apportionment

The Federal Circuit vacated a $145 million patent damages award against Apple, holding that Wi-LAN’s expert improperly used entire smartphone sales as the royalty base for cellular standard-essential patents — applying the entire market value rule without adequate apportionment to the patented features — and requiring retrial on damages.

Federal Circuit, Utility Patent

IOENGINE v. PayPal Holdings — Federal Circuit Addresses IPR Estoppel and Non-Patent Prior Art Grounds

The Federal Circuit clarified the scope of IPR estoppel under § 315(e)(2), holding that IPR estoppel applies only to grounds based on patents or printed publications — the types of prior art available in IPR — and does not bar district court invalidity challenges based on prior art that could not have been raised in IPR, such as prior public use or on-sale evidence.

PTAB, Utility Patent

Xilinx v. Analog Devices — Federal Circuit on IPR Petition Grounds and Institution of Partial Review

The Federal Circuit addressed the PTAB’s discretionary authority under § 314(a) to deny IPR petitions based on factors including the stage of parallel district court litigation and the efficiency of institution — affirming the PTAB’s broad discretion in institution decisions and its authority to consider the NHK-Fintiv framework for balancing IPR efficiency against parallel litigation.

Federal Circuit, Utility Patent

Nevro Corp. v. Boston Scientific — Federal Circuit on Written Description for High-Frequency Spinal Cord Stimulation Patent

The Federal Circuit reversed a district court’s summary judgment finding written description inadequacy for Nevro’s spinal cord stimulation patents, holding that the specification’s disclosure of the claimed frequency ranges combined with paresthesia-free stimulation raised genuine issues of material fact about whether a skilled artisan would have recognized the inventor’s possession of the full claimed range.

Federal Circuit, Utility Patent

Medtronic v. Teleflex — Federal Circuit on Lead Placement Patent Claims and Claim Differentiation

The Federal Circuit addressed claim differentiation and claim construction for Teleflex’s coronary sinus lead placement patent — holding that where a dependent claim adds a specific limitation, the corresponding independent claim must be broader, and applying this principle to construe lead placement method claims in a dispute between cardiac device makers.

Supreme Court, Utility Patent

Oil States Energy Services v. Greene’s Energy Group — Supreme Court Upholds Constitutionality of Inter Partes Review

The Supreme Court held 7-2 that inter partes review does not violate Article III or the Seventh Amendment — because patents are public franchises granted by the government, which may reclaim or modify them through an executive agency proceeding without a jury trial, upholding the America Invents Act’s most powerful patent challenge mechanism.

Federal Circuit, Utility Patent

SimpleAir v. Google — Federal Circuit Holds Terminal Disclaimer Alone Does Not Establish Claim Preclusion for Continuation Patents

The Federal Circuit vacated a claim preclusion ruling against SimpleAir, holding that filing a terminal disclaimer in a continuation patent does not create a presumption that the continuation’s claims are patentably indistinct from the parent, and courts must compare actual claim scope before finding preclusion.

Federal Circuit, Utility Patent

Travel Sentry v. Tropp — Federal Circuit Applies Divided Infringement to Method Claims

The Federal Circuit reversed summary judgment of non-infringement in a divided infringement case, holding that the ‘direction and control’ standard from Akamai v. Limelight could be satisfied where one party conditions participation in an activity on performance of a method step by another party — applying the standard to luggage locks and TSA inspection agreements.

Federal Circuit, Utility Patent

In re Cray (2017) — Federal Circuit Defines ‘Regular and Established Place of Business’ for Patent Venue After TC Heartland

The Federal Circuit granted mandamus to Cray and set forth a three-part test for what constitutes a ‘regular and established place of business’ under the patent venue statute — rejecting the Eastern District of Texas’s expansive four-factor test and clarifying that employees’ homes and remote workers in a district do not, by themselves, establish venue.

Federal Circuit, Utility Patent

Nidec Motor Corp. v. Zhongshan Broad Ocean Motor — Federal Circuit on IPR Estoppel Scope for Non-Patent Art

The Federal Circuit held that IPR estoppel under § 315(e)(2) does not extend to prior art grounds based on patents or printed publications that the petitioner could not have raised in IPR — specifically that prior art systems and physical products (which cannot be raised in IPR) are not subject to the IPR estoppel bar in subsequent district court litigation.

Federal Circuit, Utility Patent

Helsinn Healthcare v. Teva Pharmaceuticals (Federal Circuit 2017) — Secret Sales with Public Existence Trigger AIA On-Sale Bar

The Federal Circuit held that a secret commercial sale — where the existence of the sale agreement was publicly disclosed but the details of the invention were kept confidential — triggers the on-sale bar under the AIA, finding that the America Invents Act did not change the rule that confidential sales can invalidate patents when the sale’s existence is public.

Supreme Court, Utility Patent

SCA Hygiene Products v. First Quality Baby Products — Supreme Court Eliminates Laches as Defense to Patent Infringement Within Statute of Limitations

The Supreme Court held 7-1 that laches cannot be used as a defense to patent infringement that occurred within the six-year statute of limitations — extending Petrella v. Metro-Goldwyn-Mayer (copyright) to patent law and eliminating a long-standing Federal Circuit precedent that had allowed laches to bar infringement suits brought years after the patent holder learned of the infringement.

Federal Circuit, Utility Patent

Mentor Graphics v. EVE-USA (2017) — Federal Circuit Holds Panduit Lost Profits Analysis Satisfies Apportionment Without Separate Apportionment Step

The Federal Circuit held that when a patentee satisfies all four Panduit factors for lost profits — including proving demand driven by the patented feature and no acceptable non-infringing substitutes — no further separate apportionment of those profits is required, because the Panduit analysis inherently ties the damages to the patented features’ value.

Federal Circuit, Utility Patent

WesternGeco v. ION Geophysical — Federal Circuit Bars Foreign Lost Profit Damages Under Section 271(f), Later Reversed by Supreme Court

The Federal Circuit reversed a $93 million foreign lost-profits award for ION’s domestic infringement under Section 271(f), holding that the presumption against extraterritoriality barred recovery for overseas contracts WesternGeco would have won absent the infringement — a ruling the Supreme Court reversed in 2018.

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