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Prosecution History Estoppel Pharmaceutical Patents Claim Construction

Proskauer - The Patent Playbook

Eyes Open to the Past: Federal Circuit Holds Prosecution History Is Claim Construction Evidence

The Federal Circuit’s decision in Eye Therapies, LLC v. Slayback Pharma, LLC provides further insight into the tools available for patent claim construction. The Federal Circuit had previously held that a patent’s...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Statements Made During Prosecution of Parent Application Disavow Claim Scope in Subsequent Patents

The Federal Circuit affirmed a District of Delaware finding of non-infringement in an ANDA litigation due to the patentee’s clear and unmistakable disavowal of claim scope during prosecution. Specifically, the court held that...more

Foley & Lardner LLP

Prosecution History Informs Claim Meaning Even Without Unmistakable Disclaimer

Foley & Lardner LLP on

Although non-precedential, the Federal Circuit decision in Aptalis Pharmatech, Inc. v. Apotex Inc. is worth a read to see how the court “tiptoes” the “fine line between reading a claim in light of the specification, and...more

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