In his recent article Without Preamble, Stanford professor Mark Lemley surveys the morass of law on determining when patent claim preambles are limiting, and he predicts that it will be swept away if the Supreme Court ever faces t…
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In Kitsch LLC v. Deejayzoo, LLC (Case No. LA CV19-02556 JAK (RAOx)) the Central District of California interpreted claims of U.S. Patent No. 10,021,930 that included terms of degree as being sufficiently definite under 35 U.S.C. …
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Providing a reminder about how to interpret elements of a patent claim when analyzing the claim against prior art during patent prosecution, in Technical Consumer Products, Inc. v. Lighting Science Group Corp. (April 8, 2020), the…
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The Eastern District of Texas recently invalidated several patent claims that the court had found indefinite in a separate claim construction ruling in the case Uniloc 2017 v. Samsung. Interestingly, the court found the claim term…
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In consolidated cases Niazi Licensing Corp. v. Boston Scientific Corp. and Niazi Licensing Corp. v. St. Jude Medical S.C. Inc. the district court found U.S. Patent 6,638,268 (“the ‘268 patent”) to be invalid under 35 U.S.C.…
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In William Grecia v. Samsung Electronics (Fed. Cir. 2019) the Federal Circuit affirmed a finding of invalidity for U.S. Patent 8,533,860 (the ‘860 patent) under 35 U.S.C. § 112, ¶2 (indefinite). The invalidly determination for…
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The Southern District of Texas issued an interesting Markman ruling in ConocoPhillips v. In-Depth Geophysical. While the court construed most of the claim terms in ConocoPhillips’s favor, In-Depth managed to secure rulings that…
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In Continental Circuits LLC v. Intel Corp. No. 2018-1076 (Fed. Cir. Feb. 8, 2019) the Federal Circuit determined the district court erred in its claim construction and explained the high bar that must be met to import limitations…
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Be careful with the conventional wisdom that tells a patent drafter to use permissive, open-ended language when describing features of an invention. Like me, you may have been taught to avoid “patent obscenities” like “inv…
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