Utility Patent Cases
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Utility Patent

Federal Circuit
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In re Fisher — Expressed Sequence Tags Lack Patentable Utility Without Identification of the Functions of the Underlying Genes

The Federal Circuit affirmed rejection of patent claims covering expressed sequence tags (ESTs) — partial gene sequences — for lack of utility under § 101, holding that ESTs that serve only as research tools without identification of the functions of their corresponding genes do not have the specifi

Federal Circuit
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NTP, Inc. v. Research in Motion, Ltd. — Federal Circuit Upholds BlackBerry Patent Infringement and Clarifies Extraterritoriality

The Federal Circuit affirmed that Research In Motion’s BlackBerry system infringed NTP’s wireless email patents, holding that infringement can occur even when some system components are located in Canada, and distinguishing system claims from method claims for extraterritorial purposes.

Federal Circuit
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Seachange International v. C-COR Inc. — Prosecution Disclaimer Applies to All Claims Grouped Together in Prosecution, Even If Argument Was Made Only for One Claim

The Federal Circuit reversed an infringement judgment in a video-on-demand patent case, holding that the applicant’s prosecution argument distinguishing the prior art based on ‘point-to-point’ network interconnections created a prosecution disclaimer that limited all claims grouped

Federal Circuit
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Playtex Products v. Procter & Gamble — “Substantially” Flattened Surfaces Is a Term of Approximation, Not an Absolute Requirement of Flatness

The Federal Circuit reversed a grant of summary judgment of non-infringement, holding that the term “substantially flattened surfaces” in a tampon applicator patent means surfaces materially flatter than the cylindrical barrel — not surfaces that are flat within a manufacturing tolerance

Federal Circuit
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Merck & Co. v. Teva Pharmaceuticals USA — Fosamax Once-Weekly Patent Obvious in Light of Prior Art Disclosing Same Dosing Concept; ‘About’ Carries Ordinary Meaning of ‘Approximately’

The Federal Circuit reversed the district court and invalidated Merck’s Fosamax once-weekly dosing patent as obvious, holding that prior art newsletter articles clearly disclosed once-weekly alendronate dosing, that the claim term ‘about’ retains its ordinary meaning of ‘appr

Federal Circuit
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Teva Pharmaceuticals v. Pfizer — Orange Book Patent Listing Alone Does Not Create Reasonable Apprehension of Suit for ANDA Declaratory Judgment

The Federal Circuit held that a patentee’s listing of a patent in the FDA Orange Book does not, by itself, create the reasonable apprehension of suit necessary for a generic drug maker to maintain a Hatch-Waxman declaratory judgment action challenging the patent’s validity or non-infring

Federal Circuit
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In re Klopfenstein — Publicly Displayed Slide Presentation at a Conference Qualifies as a Printed Publication Under § 102(b) Based on Public Accessibility

The Federal Circuit affirmed rejection of a patent application for lack of novelty, holding that a slide presentation displayed for several days at professional conferences constitutes a ‘printed publication’ under 35 U.S.C. § 102(b) based on public accessibility — even without distribut

Federal Circuit
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Innova/Pure Water, Inc. v. Safari Water Filtration — “Operatively Connected” Is a Functional Term Not Limited to Unitary Physical Attachment

The Federal Circuit vacated summary judgment of non-infringement, holding that the claim term ‘operatively connected’ means components must be connected in a way that permits them to perform their designated function — not that they must be physically attached in a unitary structure.

Federal Circuit
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Metabolite Laboratories v. Laboratory Corporation of America — Method Patent on Diagnosing Vitamin Deficiency by Correlating Homocysteine Levels Upheld

The Federal Circuit affirmed a jury verdict that LabCorp indirectly infringed Metabolite’s patent on a method of detecting vitamin B12 and folate deficiency by measuring and correlating homocysteine levels, a case that later reached the Supreme Court and raised fundamental questions about pate

Federal Circuit
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Honeywell International v. Hamilton Sundstrand Corp. — Canceling and Rewriting a Claim Triggers Prosecution History Estoppel

The Federal Circuit held that a patent applicant’s cancellation of an independent claim and rewriting of a dependent claim as a new independent claim during prosecution triggers prosecution history estoppel, creating a presumptive bar to capturing the surrendered subject matter through the doc

Federal Circuit
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Chiron Corp. v. Genentech, Inc. — Broad Monoclonal Antibody Claims Invalid When Specification Enables Only Murine Antibodies, Not Chimeric or Humanized Forms

The Federal Circuit affirmed invalidity of Chiron’s HER2 antibody patent, holding that claims broadly encompassing chimeric and humanized antibodies were not enabled by a specification that only disclosed murine antibodies, even though the claims were filed years before Herceptin was developed

Federal Circuit
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University of Rochester v. G.D. Searle & Co. — Method Patent Claims Fail Written Description When Claimed Compounds Were Not Invented

The Federal Circuit affirmed invalidation of the University of Rochester’s COX-2 inhibitor method patent, holding that a patent claiming a method of using a compound fails the written description requirement when the specification does not disclose the actual compounds needed to perform the me

Federal Circuit
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Liquid Dynamics Corp. v. Vaughan Co. — Terms of Approximation Like ‘Substantial’ in Patent Claims Have Real Meaning and Cannot Be Interpreted to Require Perfection

The Federal Circuit vacated a summary judgment of non-infringement, holding that the claim term ‘a substantial helical flow path’ is a meaningful approximation — not an absolute requirement for a geometrically perfect helix — and that the district court erred by construing the term to re

Federal Circuit
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Geneva Pharmaceuticals v. GlaxoSmithKline — Method-of-Use Claims Cannot Extend Patent Protection When Earlier Compound Patent Discloses the Same Use

The Federal Circuit held that method-of-use claims on a pharmaceutical compound are not patentably distinct from an earlier patent claiming the same compound when the earlier patent’s specification already disclosed that use, affirming invalidity for nonstatutory obviousness-type double patent

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