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:
Apr. 06, 1993
Filed:
Apr. 12, 1991
Applicant:
Inventor:
Paul C Chieng, St. Louis, MO (US);
Assignee:
Mallinckrodt Specialty Chemicals Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C08F / ;
U.S. Cl.
CPC ...
530344 ; 530334 ; 525 5411 ;
Abstract
In solid phase peptide synthesis, resin-bound peptide is treated with hydrogen fluoride so as to cleave the peptide from the resin and form a first mixture of peptide, hydrogen fluoride and resin. The resin is removed from the first mixture so as to provide a resin-free second mixture including the polypeptide and the hydrogen fluoride. The polypeptide of the second mixture then is separated from the hydrogen fluoride.