Category Archives: Obviousness

Obviousness-type double patenting in the Age of the Twenty-Year Term and Patent Term Adjustment

Obviousness-type double patenting (ODP) attempts to prevent the term of a “reference patent” claiming an obvious variant of a parent patent to exceed the term of the parent. This fulfills the mandate of the patent statute of “one patent per … Continue reading

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Almirall v. Amneal Pharmaceuticals – Negative Limitations II

This post gets a “Part II” designation because the Fed. Cir. clarified the support necessary to find a negative limitation in the prior art (Almirall LLC v. Amneal Pharmaceuticals LLC, Appeal No. 2020-2331 (Fed. Cir., March 14, 2022)). In my … Continue reading

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Strathclyde v. Clear-Vu – A Class in Obviousness

In fact, it was Clear-Vu that got “schooled” in the law of obviousness, but this case would be a good teaching—or review—article for anyone on this subject. I admit, it was refreshing to re-read some of the classic quotes from … Continue reading

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Chemours Co. v. Daikin Industries – Back to Some IP Basics

After trying to untie the Gordian knot of patent eligibility, it is almost IP comfort food to read a Fed. Cir. decision that deals with obviousness. In Chemours Co. FC, LLC v Daikin Industries, Ltd., Appeal Nos. 2020-1289 and 2020-1290 … Continue reading

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