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Opinion Summary – Wyeth LLC v. AstraZeneca Pharmaceuticals LP

Last week the Federal Circuit issued its opinion in Wyeth LLC v. AstraZeneca Pharmaceuticals LP, a patent case we have been following because it attracted an amicus brief. In this case, Wyeth appealed a lower court’s grant of judgment as a matter of law of invalidity for lack of enablement. The case presented questions related to claim construction as well as whether pre-issuance provisional rights under the Patent Act extend to induced infringement. In an opinion authored by Judge Lourie and joined by Judges Linn and Hughes, the court affirmed the judgment of invalidity. This is our summary of the opinion.

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Opinions

Opinions & Orders – July 17, 2026

This morning, the Federal Circuit released one precedential opinion, two nonprecedential opinions, one nonprecedential order, and one Rule 36 summary affirmance. The precedential opinion comes in a government contract and takings case appealed from the Court of Federal Claims. One of the nonprecedential opinions comes in another takings case appealed from the Court of Federal Claims, and one comes in a patent case appealed from the Patent Trial and Appeal Board. The order dismisses an appeal. Here are the introductions to the opinions as well as links to the dismissal and summary affirmance.

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Opinions

Opinions & Orders – July 16, 2026

Late yesterday, the Federal Circuit released a nonprecedential order vacating a judgment and remanding a case in light of the Supreme Court’s judgment in the case. This morning, the court issued three precedential opinions, four nonprecedential opinions, and one nonprecedential order. One of the precedential opinions comes in a correction of military records case appealed from the Court of Federal Claims; one comes in a copyright case appealed from the Court of Federal Claims; and one comes in a trade case appealed from the Court of International Trade. Of the nonprecedential opinions, ones comes in response to a petition to review a final decision of the Merit Systems Protection Board; one comes in a veterans case appealed from the Court of Appeals for Veterans Claims; and two come in patent cases appealed from the Patent Trial and Appeal Board. Today’s order dismisses an appeal. Here are the introductions to the opinions and yesterday’s order as well as a link to the dismissal.

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Opinions

Opinions & Orders – July 15, 2026

This morning, the Federal Circuit released one precedential opinion, two nonprecedential opinions, and one nonprecedential order. The precedential opinion comes in a tax case appealed from the Court of Federal Claims. One of the nonprecedential opinions comes in a patent case appealed from the Patent Trial and Appeal Board, and the other comes in a veterans case appealed from the Court of Appeals for Veterans Claims. The order denies a petition for writ of mandamus to the Eastern District of Texas. Here are the introductions to the opinions and the order.

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Opinions

Opinions & Orders – July 14, 2026

This morning, the Federal Circuit released two nonprecedential opinions, one nonprecedential order, and two Rule 36 summary affirmances. One of the nonprecedential opinions comes in a case appealed from the Court of Federal Claims, and one comes in response to a petition to review a final decision of the Merit Systems Protection Board. The order dismisses an appeal. Here are the introductions to the opinions as well as links to the dismissal and the summary affirmances.

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Opinions

Opinions & Orders – July 13, 2026

Late Friday, the Federal Circuit released one nonprecedential order dismissing an appeal. This morning, the court released one precedential opinion, four nonprecedential opinions, and one Rule 36 summary affirmance. The precedential opinion comes in a patent case appealed from the Southern District of Ohio. One of the nonprecedential opinions comes in a patent case appealed from the Patent Trial and Appeal Board, one comes in a government contract case appealed from the Court of Federal Claims, one comes in a veterans case appealed from the Court of Appeals for Veterans Claims, and one comes in a patent case appealed from the Western District of Michigan. Here are the introductions to the opinions as well as links to the dismissal and summary affirmance.

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Opinions

Opinions & Orders – July 10, 2026

This morning, the Federal Circuit released two precedential opinions, two nonprecedential opinions, three nonprecedential orders, and two Rule 36 Summary Affirmances. One precedential opinion comes in a veterans case appealed from the Court of Appeals for Veterans Claims, and one comes in a patent case appealed from the Patent Trial and Appeal Board. One nonprecedential opinion comes in a case appealed from the Court of Federal Claims, and one comes in response to a petition to review a final decision of the Merit Systems Protection Board. One nonprecedential order dismisses an appeal, and two nonprecedential orders dismiss petitions. Here are the introductions to the opinions as well as links to the dismissals and summary affirmances.

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Opinions

Opinions & Orders – July 9, 2026

This morning, the Federal Circuit released one precedential opinion, two nonprecedential opinions, and two Rule 36 summary affirmances. The precedential opinion comes in a patent case appealed from the District of Delaware. One of the nonprecedential opinions comes in a takings case appealed from the Court of Federal Claims, and one comes in a patent case appealed from the Patent Trial and Appeal Board. Here are the introductions to the opinions as well as links to the summary affirmances.

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Opinions

Opinions & Orders – July 8, 2026

Late yesterday, the Federal Circuit released a nonprecedential order dismissing an appeal. This morning, the Federal Circuit released three nonprecedential opinions and three nonprecedential orders. One nonprecedential opinion comes in a pro se case appealed from the Court of Federal Claims, one comes in a veterans case appealed from the Court of Appeals for Federal Claims, and one comes in response to a petition for review of a final decision of the Merit Systems Protection Board. One nonprecedential order denies a petition for a writ of mandamus to the Merit Systems Protection Board, and two orders dismiss appeals. Here are the introductions to the opinions and the orders as well as links to the dismissals.

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Opinions

Opinions & Orders – July 7, 2026

This morning, the Federal Circuit released one nonprecedential opinion and three nonprecedential orders. The nonprecedential opinion comes in a patent case appealed from the Northern District of California. One of the orders comes in response to a petition for review of a final decision of the Merit Systems Protection Board, and the other two orders dismiss appeals. Here are the introductions to the opinions and the first order as well as links to the dismissals.

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