Pfizer, Inc. Patent litigation record

Company 40 cases

40 cases on record naming Pfizer, Inc.: 31 as claimant, 9 as respondent. Each row links to that case’s full docket record.

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Litigation indexPatsnap Litigation Data··Docket source: PACER

40 cases on record

Cases on record
40
As claimant
31
As respondent
9
Patents held
Not recorded
Core tech
C07D487/04 · A61K31/519 · A61K31/365 · A61K31/445 · A61K31/4439 · C07D401/06 · C07D263/57 · A61K31/423 · A61K38/12 · A61K38/13
Case no.PartiesRoleCourtFiledDurationOutcome
1:25-cv-01202 Pfizer, Inc. v. Prinston Pharmaceutical, Inc. Plaintiff D. Del. 26 Sep 2025 7 d Voluntary dismissal
1:25-cv-00775 Pfizer, Inc. v. Apotex, Inc. Plaintiff D. Del. 23 Jun 2025 119 d Dismissed without Prejudice
1:25-cv-00765 Pfizer, Inc. v. Apotex, Inc. Plaintiff D. Del. 20 Jun 2025 42 d Dismissed without Prejudice
1:25-cv-00632 Pfizer, Inc. v. Macleods Pharmaceuticals Plaintiff D. Del. 21 May 2025 55 d Dismissed without Prejudice
1:25-cv-00617 Pfizer, Inc. v. Somerset Therapeutics LLC Plaintiff D. Del. 16 May 2025 138 d Dismissed without Prejudice
1:25-cv-00565 Pfizer, Inc. v. Alkem Laboratories, Ltd. Plaintiff D. Del. 7 May 2025 44 d Dismissed without Prejudice
1:25-cv-00424 Pfizer, Inc. v. Annora Pharma Private, Ltd. Plaintiff D. Del. 4 Apr 2025 39 d Voluntary dismissal
1:24-cv-01427 Pfizer, Inc. v. Alkem Laboratories, Ltd. Plaintiff D. Del. 30 Dec 2024 64 d Dismissed without Prejudice
1:24-cv-01244 Pfizer, Inc. v. Sandoz, Inc. Plaintiff D. Del. 12 Nov 2024 218 d Dismissed without Prejudice
1:24-cv-01122 Pfizer, Inc. v. Breckenridge Pharmaceutical, Inc. Plaintiff D. Del. 9 Oct 2024 35 d Dismissed without Prejudice
1:24-cv-00953 Pfizer, Inc. v. Ajanta Pharma Plaintiff D. Del. 16 Aug 2024 66 d Case Dismissed
1:24-cv-00927 Pfizer, Inc. v. SpecGx, LLC Plaintiff D. Del. 9 Aug 2024 95 d Dismissed without Prejudice
1:24-cv-00757 Pfizer, Inc. v. Biocon, Ltd. Plaintiff D. Del. 26 Jun 2024 75 d Dismissed without Prejudice
1:24-cv-00627 Pfizer, Inc. v. Teva Pharmaceutical Industries, Ltd. Plaintiff D. Del. 23 May 2024 603 d Closed
1:23-cv-01304 Pfizer, Inc. v. Dexcel Pharma Technologies, Ltd. Plaintiff D. Del. 15 Nov 2023 152 d Dismissed without Prejudice
1:23-cv-00924 Pfizer, Inc. v. Zenara Pharma Private, Ltd. Plaintiff D. Del. 23 Aug 2023 979 d Dismissed without Prejudice
1:23-cv-00879 Pfizer, Inc. v. Dexcel Pharma Technologies Limited Plaintiff D. Del. 10 Aug 2023 992 d Dismissed without Prejudice
1:23-cv-00831 Glaxosmithkline Biologicals, SA v. Pfizer, Inc. Defendant D. Del. 2 Aug 2023 611 d Dismissed with Prejudice
1:23-cv-00717 Pfizer, Inc. v. Aurobindo Pharma, Ltd. Plaintiff D. Del. 30 Jun 2023 168 d Dismissed without Prejudice
1:23-cv-00718 Pfizer, Inc. v. Sun Pharmaceutical Industries, Inc. Plaintiff D. Del. 30 Jun 2023 56 d Dismissed without Prejudice
1:23-cv-00634 Pfizer, Inc. v. Annora Pharma Private, Ltd. Plaintiff D. Del. 9 Jun 2023 77 d Dismissed without Prejudice
3:23-cv-01048 Promosome, LLC v. Pfizer, Inc. Defendant S.D. Cal. 6 Jun 2023 146 d Voluntary dismissal
1:23-cv-00578 Alnylam Pharmaceuticals, Inc. v. Pfizer, Inc. Defendant D. Del. 26 May 2023 796 d Judgment on the merits for Defendant
1:23-cv-00445 Pfizer, Inc. v. Apotex, Inc. Plaintiff D. Del. 21 Apr 2023 41 d Voluntary dismissal
23-1404 uniQure BioPharma BV v. Pfizer, Inc. Defendant Fed. Cir. 18 Jan 2023 855 d Unpatentable
23-1405 uniQure BioPharma BV v. Pfizer, Inc. Defendant Fed. Cir. 18 Jan 2023 855 d Unpatentable
23-1406 uniQure BioPharma BV v. Pfizer, Inc. Defendant Fed. Cir. 18 Jan 2023 855 d Unpatentable
1:22-cv-01501 Pfizer, Inc. v. Sun Pharmaceutical Industries, Inc. Plaintiff D. Del. 16 Nov 2022 69 d Voluntary dismissal
1:22-cv-01484 Pfizer, Inc. v. Sinotherapeutics, Inc. Plaintiff D. Del. 11 Nov 2022 692 d Dismissed without Prejudice
1:22-cv-00924 Alnylam Pharmaceuticals, Inc. v. Pfizer, Inc. Defendant D. Del. 12 Jul 2022 1114 d Case Consolidated
1:22-cv-10967 Enanta Pharmaceuticals, Inc. v. Pfizer, Inc. Defendant D. Mass. 21 Jun 2022 958 d Judgment on the merits for Defendant
1:22-cv-00336 Alnylam Pharmaceuticals, Inc. v. Pfizer, Inc. Defendant D. Del. 17 Mar 2022 1231 d Judgment on the merits for Defendant
1:21-cv-01567 Pfizer, Inc. v. Synthon Pharmaceuticals, Inc. Plaintiff D. Del. 3 Nov 2021 716 d Case Remanded
1:21-cv-01427 Pfizer, Inc. v. Sinotherapeutics, Inc. Plaintiff D. Del. 6 Oct 2021 1093 d Dismissed without Prejudice
1:21-cv-00157 Pfizer, Inc. v. Synthon Pharmaceuticals, Inc. Plaintiff M.D.N.C. 25 Feb 2021 1030 d Case Dismissed
19-2224 Pfizer, Inc. v. Sanofi Pasteur, Inc. Plaintiff Fed. Cir. 2 Aug 2019 1677 d Appeal Dismissed in Part
19-1871 Pfizer, Inc. v. Merck Sharp & Dohme Co., Inc. Plaintiff Fed. Cir. 14 May 2019 1757 d Appeal Dismissed in Part
19-1873 Pfizer, Inc. v. Merck Sharp & Dohme Co., Inc. Plaintiff Fed. Cir. 14 May 2019 1757 d Appeal Dismissed in Part
19-1875 Pfizer, Inc. v. Merck Sharp & Dohme Co., Inc. Plaintiff Fed. Cir. 14 May 2019 1757 d Appeal Dismissed in Part
19-1876 Pfizer, Inc. v. Merck Sharp & Dohme Co., Inc. Plaintiff Fed. Cir. 14 May 2019 1757 d Appeal Dismissed in Part
Source: Patsnap Litigation Data. Cases naming Pfizer, Inc. in the current snapshot. Run this in Eureka
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About this summary. This page summarises the litigation records within the coverage and snapshot dates stated here. Counts describe records in that dataset and do not, by themselves, establish the conduct, litigation success or legal position of any person or organisation.

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