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:
Dec. 26, 1995
Filed:
Aug. 25, 1994
Applicant:
Inventors:
Mark S Roby, Killingworth, CT (US);
Nagabhushanam Totakura, Norwalk, CT (US);
Assignee:
United States Surgical Corporation, Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08F / ;
U.S. Cl.
CPC ...
528480 ; 528354 ; 528357 ; 528361 ; 528487 ; 528491 ; 528492 ; 528495 ; 528497 ;
Abstract
A method for purifying a material containing a bioabsorbable polymer involves contacting the polymer with an extractant under supercritical conditions of temperature and pressure to extract residual impurities from the polymer and thereafter recovering the purified polymer. The method sharply reduces residual monomer levels in bioabsorbable polymers without altering polymer viscosity or melting point.
Roby, Mark. (1995). Method of purifying bioabsorable polymer (U.S. Patent No. 5478921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5478921
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile