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Last Updated: December 16, 2025

Claims for Patent: 8,247,536


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Summary for Patent: 8,247,536
Title:Factor VIII compositions
Abstract:Conjugates of a Factor VIII moiety and one or more water-soluble polymers are provided. Typically, the water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided are compositions comprising the conjugates, methods of making the conjugates, and methods of administering compositions comprising the conjugates to a patient.
Inventor(s):Bossard Mary J., Bentley Michael D., Zhang Ping
Assignee:Nektar Therapeutics
Application Number:US12636594
Patent Claims:

Details for Patent 8,247,536

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Wyeth Pharmaceuticals Llc REFACTO antihemophilic factor (recombinant) For Injection 103779 June 27, 2001 ⤷  Get Started Free 2029-12-11
Wyeth Pharmaceuticals Llc REFACTO antihemophilic factor (recombinant) For Injection 103779 July 06, 2001 ⤷  Get Started Free 2029-12-11
Takeda Pharmaceuticals U.s.a., Inc. ADYNOVATE antihemophilic factor (recombinant), pegylated For Injection 125566 November 13, 2015 ⤷  Get Started Free 2029-12-11
Takeda Pharmaceuticals U.s.a., Inc. ADYNOVATE antihemophilic factor (recombinant), pegylated For Injection 125566 October 25, 2016 ⤷  Get Started Free 2029-12-11
Takeda Pharmaceuticals U.s.a., Inc. ADYNOVATE antihemophilic factor (recombinant), pegylated For Injection 125566 March 13, 2017 ⤷  Get Started Free 2029-12-11
Novo Nordisk Inc. ESPEROCT antihemophilic factor (recombinant), glycopegylated-exei For Injection 125671 February 19, 2019 ⤷  Get Started Free 2029-12-11
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 8,247,536

Country Patent Number Estimated Expiration
World Intellectual Property Organization (WIPO) 2004075923 ⤷  Get Started Free
United States of America 9999657 ⤷  Get Started Free
United States of America 8889831 ⤷  Get Started Free
United States of America 8618259 ⤷  Get Started Free
United States of America 8519102 ⤷  Get Started Free
United States of America 8143378 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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