Last Updated: June 25, 2026

Patent: 7,935,787

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Summary for Patent: 7,935,787

Title:	Formulations which stabilize and inhibit precipitation of immunogenic compositions
Abstract:	The present invention addresses an ongoing need in the art to improve the stability of immunogenic compositions such as polysaccharide-protein conjugates and protein immunogens. The invention broadly relates to novel formulations which stabilize and inhibit precipitation of immunogenic compositions. More particularly, the invention described hereinafter, addresses a need in the art for formulations which stabilize and inhibit particulate formation (e.g., aggregation, precipitation) of immunogenic compositions which are processed, developed, formulated, manufactured and/or stored in container means such as fermentors, bioreactors, vials, flasks, bags, syringes, rubber stoppers, tubing and the like.
Inventor(s):	Lakshmi Khandke, Ronald Malone, Xudong Yang, Hanyoung Han, Jee Loon Look, Zhaowei Jin, Robert C. Seid, Jr., Ying Chen
Assignee:	Wyeth LLC
Application Number:	US11/737,674
Patent Claims:	see list of patent claims

Details for Patent 7,935,787

Glossary

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Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Wyeth Pharmaceuticals Llc	PREVNAR 20	20-valent pneumococcal conjugate vaccine	Injection	125731	June 08, 2021	7,935,787	2027-04-19
>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

International Patent Family for US Patent 7,935,787

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Country	Patent Number	Estimated Expiration
Argentina	060665	⤷ Start Trial
Argentina	110731	⤷ Start Trial
Australia	2007243019	⤷ Start Trial
Australia	2012216628	⤷ Start Trial
Australia	2014268186	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration

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