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:
Jul. 02, 1996
Filed:
Jul. 26, 1994
Applicant:
Inventors:
Assignee:
Shiseido Company Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
525 542 ; 424 7808 ; 424 7831 ; 424422 ; 424423 ; 424425 ; 424487 ; 424488 ; 523105 ; 523113 ; 524 27 ;
Abstract
To provide a base suitable for a controlled release preparation and the controlled release preparation. A bioactive substance(s) is introduced in a poly-ion complex of hyaluronic acid and a cationic polyacrylic acid derivative(s).