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Indefinite Contradiction or Inartful Claim Narrowing?

Earlier today the Federal Circuit in Maxell v. Amperex, No. 23-1194, vacated a District Court’s indefiniteness determination after distinguishing an indefinite patent claim having contradictory claim limitations from a patent...more

“Inelegant” Language Does Not an Indefinite Claim Term Make

To follow up on my February 6, 2024 post, Federal Circuit Judges Prost, Taranto, and Chen heard oral argument on February 9, 2024 in Maxell v. Amperex, No. 23-1194, concerning a claim term that the District Court had found...more

Is a Claim Term’s Whole Greater Than the Sum of Its Parts?

Claim terms are usually given their ordinary meaning in light of the intrinsic evidence, but what if the ordinary meaning of two claim terms presents an obvious contradiction? That is the issue that the Federal Circuit will...more

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