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:
Sep. 16, 1997
Filed:
Jan. 18, 1994
Applicant:
Inventor:
Richard A Berg, Sunnyvale, CA (US);
Assignee:
Collagen Corporation, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23C / ; A23J / ; C07K / ; C12N / ;
U.S. Cl.
CPC ...
426657 ; 119D / ; 4241571 ; 424535 ; 426580 ; 435273 ; 4351723 ; 514801 ; 530832 ; 800-2 ;
Abstract
Production of human procollagen or collagen in cells which ordinarily do not produce these molecules is effected by constructing expression systems compatible with mammary glands of non-human mammals. For example, expression systems can be microinjected into fertilized oocytes and reimplanted in foster mothers and carried to term in order to obtain transgenic non-human mammals capable of producing milk containing recombinant human procollagen or collagen. Human procollagen or collagen produced in this manner can be made of a single collagen type uncontaminated by other human or non-human collagens.