Utility Patent Cases
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Coverage since November 3, 1994

Utility Patent

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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

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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

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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

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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

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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.

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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

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