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Patent Invalidity Pfizer Pharmaceutical Patents

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

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Trastuzumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Smart & Biggar

Ontario Superior Court dismisses Apotex’s Statutes of Monopolies claims regarding sildenafil

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On September 27, 2021, the Ontario Superior Court of Justice granted Pfizer’s motion for summary judgment and dismissed Apotex’s claims for treble damages and double costs under the Ontario and English Statutes of Monopolies,...more

Smart & Biggar

Federal Court of Appeal upholds decision finding Seedlings' LifeCard patent invalid and not infringed by Pfizer’s EpiPen

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On July 28, 2021, the Federal Court of Appeal (FCA) dismissed Seedling’s appeal from the Federal Court decision of Justice Grammond (2020 FC 1, previously reported), which concluded that certain claims of Seedlings' LifeCard...more

Smart & Biggar

Federal Court upholds validity of one pneumococcal vaccine patent, but holds two other patents invalid

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Update: Wyeth’s appeal was discontinued. On April 30, 2021, the Federal Court issued its decision relating to the validity of three patents relating to Pfizer’s PREVNAR 13, a 13-valent pneumococcal polysaccharide protein...more

Smart & Biggar

Amgen not precluded by invalidity decision under pre-amended PMNOC Regulations from litigating same patent under amended...

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On October 4, 2019, the Federal Court of Appeal dismissed Pfizer’s appeal of its failed motion to dismiss Amgen’s action under section 6 of the Patented Medicines (Notice of Compliance) Regulations (PMNOC Regulations) for a...more

Smart & Biggar

Update on AstraZeneca SCC and developments on “overpromising” under grounds other than utility

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SCC Update. On October 23, 2017, the Supreme Court of Canada dismissed Apotex’s motion to amend the Supreme Court of Canada’s judgment in AstraZeneca Canada Inc v Apotex Inc, 2017 SCC 36 (reported here, relating to...more

Smart & Biggar

Rx IP Update - April 2017

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Teva awarded section 8 damages regarding pregabalin and olanzapine - On March 30 and April 4, 2017, the Federal Court released two decisions on the merits under section 8 of the Patented Medicines (Notice of...more

Foley & Lardner LLP

Federal Circuit Strikes Final Blow to Celebrex Patent

Foley & Lardner LLP on

In 2008, the Federal Circuit determined that claims 1-4 and 11-17 of U.S. Patent No. 5,760,068 were invalid for obviousness-type double patenting (OTDP) over a related parent patent, in part because the ‘068 patent was filed...more

McDonnell Boehnen Hulbert & Berghoff LLP

G.D. Searle LLC v. Lupin Pharmaceuticals, Inc. (Fed. Cir. 2015)

Over seven years ago, the Federal Circuit delivered a mixed ruling against Pfizer in litigation against Teva) relating to the pain medication Celebrex® (celocoxib) (where "celocoxib" is...more

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