Siglec-15 Binding Protein Patent Application
Summary
The European Patent Office published application EP4299591A1 for a Siglec-15 binding protein filed by Shanghai Jemincare Pharmaceuticals Co., Ltd. and Jiangxi Jemincare Group Co., Ltd. The invention relates to therapeutic binding proteins for cancer treatment (A61P 35/00), with applications in oncology and immunotherapy. Designated states cover all EPC contracting states including major European markets.
What changed
EPO published patent application EP4299591A1 titled 'Preparation of Siglec-15 Binding Protein and Use Thereof' filed by Shanghai Jemincare Pharmaceuticals. The application covers C07K 16/28 (antibodies), C12N 15/13 (gene sequences), and therapeutic use for cancer treatment (A61P 35/00). The inventors include YANG, Xinxiu, GU, Chunyin, WANG, Zongda, and others. Designated states include all major EPC contracting states (DE, FR, GB, IT, ES, NL, etc.).
This is a routine patent publication providing public notice of the application. No compliance actions are required from regulated entities. Pharmaceutical companies developing similar therapeutics or biosimilars should review the claims to assess freedom-to-operate. Healthcare providers and investors monitoring oncology pipeline developments may wish to track this application through prosecution to grant.
Source document (simplified)
PREPARATION OF SIGLEC-15 BINDING PROTEIN AND USE THEREOF
Publication EP4299591A1 Kind: A1 Mar 25, 2026
Applicants
Shanghai Jemincare Pharmaceuticals Co., Ltd., Jiangxi Jemincare Group Co., Ltd.
Inventors
YANG, Xinxiu, GU, Chunyin, WANG, Zongda, CAO, Xiaodan, LIU, Xiaowu, LIU, Peipei, YANG, Lu, DENG, Sujun, PAN, Zhongzong, WANG, Xueping
IPC Classifications
C07K 16/28 20060101AFI20250206BHEP C12N 15/13 20060101ALI20250206BHEP A61K 39/395 20060101ALI20250206BHEP A61P 35/00 20060101ALI20250206BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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