Utility Patent Cases
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Coverage since November 3, 1994

Utility Patent

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Nature Simulation Systems Inc. v. Autodesk, Inc. — Federal Circuit Rejects “Unanswered Questions” Standard for Indefiniteness, Clarifies § 112 Test

The Federal Circuit reversed an indefiniteness ruling against patents covering geometric meshing methods used in computer-aided design, holding that the district court applied an incorrect ‘unanswered questions’ test rather than the proper ‘reasonable certainty’ standard from

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Kamstrup A/S v. Axioma Metering UAB — Federal Circuit Holds Product-By-Process Language Does Not Confer Patentability Without Structural Distinction from Prior Art

The Federal Circuit affirmed that product-by-process claim language — which defines a product in terms of the process used to make it — does not impart patentable weight unless the claimed process produces a product that is structurally and functionally different from the prior art.

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Realtime Adaptive Streaming LLC v. Netflix, Inc. — Federal Circuit Upholds Attorneys’ Fees Sanction for Forum-Shopping Through Voluntary Dismissal and Refiling

The Federal Circuit affirmed an award of attorneys’ fees under the court’s inherent equitable powers, holding that a patent owner’s voluntary dismissal from one district followed immediately by refiling the same case in a different district constituted bad-faith forum shopping that warranted sanctio

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Koninklijke Philips N.V. v. Thales DIS AIS USA LLC — Federal Circuit Holds Speculative Customer Concerns Are Insufficient to Show Irreparable Harm for Preliminary Injunction

The Federal Circuit affirmed denial of a preliminary injunction, holding that speculative harms and generalized customer concerns about potential future harm do not constitute the concrete evidence of irreparable injury required to support preliminary patent injunctive relief.

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LG Electronics Inc. v. ImmerVision, Inc. — Federal Circuit Holds Obvious Transcription Errors in Prior Art Cannot Support Invalidity Finding

The Federal Circuit held that prior art references containing obvious transcription errors — mistakes that a skilled artisan would immediately recognize as misstatements — cannot be used to establish unpatentability, because the erroneous content does not accurately disclose the state of the art.

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Centripetal Networks v. Cisco Systems — Federal Circuit Vacates $2.75 Billion Award After Judge’s Failure to Recuse Over Spouse’s Stock Ownership

The Federal Circuit vacated a $2.75 billion patent infringement judgment against Cisco, holding that the trial judge was disqualified from hearing the case after discovering his wife owned Cisco stock — placing the stock into a blind trust did not satisfy the federal recusal statute’s divestiture re

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