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:
Nov. 21, 1995
Filed:
Sep. 08, 1994
Applicant:
Inventors:
Alan J Barrett, Cambridgeshire, GB;
David J Buttle, Cambridgeshire, GB;
Daniel H Rich, Madison, WI (US);
Assignee:
The Boots Company PLC, Nottingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C12N / ;
U.S. Cl.
CPC ...
424 9465 ; 435219 ;
Abstract
A pharmaceutical composition comprising purified chymopapain and a reducing agent is presented. The purified chymopapain in this composition has a specific activity against 1 mM of N-.alpha.-benzoyl-DL-arginine p-nitroanilide at 40.degree. C. and pH 6.8 of between 3,000 and 4,500 units per mg, and contains less than 0.2% each of papaya proteinase III (PPIII), papain, and papaya proteinase IV (PPIV).