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:
Jun. 25, 1991
Filed:
Dec. 01, 1988
Applicant:
Inventor:
Shigeko Yamazaki, Hatfield, PA (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07K / ;
U.S. Cl.
CPC ...
530414 ; 530412 ; 530418 ; 530419 ; 530422 ; 530300 ; 530350 ; 530824 ; 424 89 ;
Abstract
Recombinant hepatitis B antigen bound to yeast membranes in yeast expression systems is rapidly purified by subjecting the membrane bound protein to agents that release undesired proteins, followed by agents that release the recombinant hepatitis B antigen.