Coverage since November 3, 1994

Federal Circuit

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Exxon Research & Engineering Co. v. United States — Close Questions of Claim Construction Do Not Automatically Render Claims Indefinite

The Federal Circuit reversed a summary judgment of invalidity for indefiniteness, reaffirming that claims are sufficiently definite under § 112 if a person skilled in the art would understand the bounds of the claim when read in light of the specification — close questions of claim construction do n

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Gart v. Logitech, Inc. — Preferred Embodiment’s Specific Structure Cannot Limit Broader Claim Language; Patent Notice Letters Must Identify Specific Products

The Federal Circuit vacated summary judgment of non-infringement, holding that the district court improperly imported a structural limitation (a “ledge”) from the patent drawings into a broader claim term (“angular medial surface”), and clarified when a patentee’s pre-s

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