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:
Mar. 05, 1991
Filed:
Aug. 14, 1989
Applicant:
Inventors:
Robert C Dean, Jr, Norwich, VT (US);
Frederick H Silver, Long Valley, NJ (US);
Richard A Berg, Lambertville, NJ (US);
Philip G Phillips, Norwich, VT (US);
Peter W Runstadler, Jr, Hanover, NH (US);
Assignee:
Verax Corporation, Hanover, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435 691 ; 4351721 ; 435174 ; 435176 ; 435177 ; 43524023 ; 43524024 ; 43524026 ; 4352523 ; 435 7021 ; 435 703 ; 436548 ; 530356 ; 935 60 ;
Abstract
Weighted collagen microsponges having a highly crosslinked collagen matrix are described suitable for use in culturing organisms in motive reactor systems. The microsponges have an open to the surface pore structure, and pore sizes and volumes suitable for immobilizing a variety of bioactive materials. The microsponges also have an average particle size in the range of about 100 to about 1000 microns and a specific gravity above about 1.05.