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Last Updated: March 12, 2026

Claims for Patent: 11,273,205

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Summary for Patent: 11,273,205

Title:	IL-15 protein complex pharmaceutical composition
Abstract:	The present disclosure relates to a pharmaceutical composition, which comprises an IL-15 protein complex and a citrate buffer solution. In addition, the pharmaceutical composition may also comprise a sugar and a non-ionic surfactant. The pharmaceutical composition in the present disclosure demonstrates a high degree of stability even after being stored at 2-8° C. for several months.
Inventor(s):	Tingting Wu, Hao Li, Xun Liu
Assignee:	Jiangsu Hengrui Medicine Co Ltd , Shanghai Hengrui Pharmaceutical Co Ltd
Application Number:	US16/632,411

Details for Patent 11,273,205

Glossary

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Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Octapharma Pharmazeutika Produktionsges.m.b.h.	WILATE	von willebrand factor/coagulation factor viii complex (human)	For Injection	125251	December 20, 2010	⤷ Get Started Free	2038-07-24
Janssen Biotech, Inc.	STELARA	ustekinumab	Injection	761044	September 23, 2016	⤷ Get Started Free	2038-07-24
>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

International Patent Family for US Patent 11,273,205

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Country	Patent Number	Estimated Expiration
South Africa	201908610	⤷ Get Started Free
World Intellectual Property Organization (WIPO)	2019019998	⤷ Get Started Free
United States of America	2020230210	⤷ Get Started Free
Ukraine	125971	⤷ Get Started Free
>Country	>Patent Number	>Estimated Expiration

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