Obvious-type double patenting (ODP) has historically served as a tool to prevent patent owners from extending exclusivity beyond the statutory allowed patent term and to tie patent families together during sale. Historically,...more
Under U.S. law, most patents are limited to a term of 20 years from the earliest nonprovisional filing date. However, Patent Term Adjustment (PTA) and Patent Term Extension (PTE) can be used in certain circumstances to gain...more
The Supreme Court denies Cellect LLC's petition for certiorari to consider whether patent term adjustment ("PTA") should be included in patent term for obviousness-type double patenting ("ODP") purposes....more
In Wisconsin Alumni Research Foundation v. Apple, the Federal Circuit expanded the preclusive effect of non-infringement rulings. It ruled that prior judgments of non-infringement can prevent follow-on lawsuits involving...more
Co-authored by Sam Cohen, Summer Associate 2024. On May 29, 2024, the Western District of Oklahoma in SIPCO, LLC v. JASCO Prods. Co. dismissed the plaintiff SIPCO’s patent infringement claims against defendant JASCO because...more
A recent case in the Western District of Oklahoma shines a spotlight on the patent danger posed by errors in a terminal disclaimer. In this case, a typographical error in the filed terminal disclaimer rendered an ensuing...more
In August 2023, the Federal Circuit in In re Cellect held that in evaluating unpatentability for obviousness-type double patenting (ODP) of a patent that has received patent term adjustment (PTA), the relevant date is the...more
As part of the recovery from the global COVID-19 pandemic, the U.S. Court of Appeals for the Federal Circuit took steps to return to normal operations. It began requiring live oral arguments in August 2022 and, by November,...more
Join the conference that the “who’s who” of Hatch-Waxman litigators have designated as the forum which sets the standards for Paragraph IV practice. ACI’s Paragraph IV Litigation Conference is returning LIVE & IN-PERSON to...more