The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Sep. 17, 2019
Zhejiang Doer Biologics Corporation, Zhejiang, CN;
Yanshan Huang, Zhejiang, CN;
ZHEJIANG DOER BIOLOGICS CORPORATION, Zhejiang, CN;
Abstract
The present disclosure provides an artificial recombinant protein for improving the performance of an active protein or polypeptide and the use thereof. The present disclosure provides a polypeptide unit (U) or a polypeptide complex unit (PU) that is very effective for prolonging the biological activity and half-life of a protein or polypeptide or improving the in-vivo and in-vitro properties of a protein or polypeptide, the polypeptide unit (U) being mainly composed of proline (P), alanine (A) and glutamic acid (E). The present disclosure also provides a biologically active fusion protein comprising the polypeptide unit (U) or the polypeptide complex unit (PU) and an active protein or polypeptide connected thereto.