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:
Feb. 23, 1999
Filed:
Jan. 16, 1996
Applicant:
Inventors:
Douglas G Kilburn, Vancouver, CA;
Keith R Humphries, Vancouver, CA;
James G Doheny, Vancouver, CA;
Eric Jervis, Vancouver, CA;
Judie Alimonti, Vancouver, CA;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07K / ; C12N / ;
U.S. Cl.
CPC ...
435395 ; 435383 ; 435384 ; 435385 ; 435386 ; 435387 ; 530350 ; 530351 ; 5303871 ; 530399 ; 514-2 ;
Abstract
Methods and compositions are provided for in vitro expansion of growth factor dependent cells. Expansion is effected through the use of growth factor conjugates that include a growth factor such as a steel factor and a polysaccharidase substrate binding region. The conjugates are immobilized by binding of the substrate binding region to a substrate of the polysaccharidase in a growth chamber for the cells.