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:
Oct. 06, 1992
Filed:
Dec. 11, 1990
Applicant:
Inventors:
David A Wolf, Houston, TX (US);
Clarence F Sams, Houston, TX (US);
Ray P Schwarz, Friendswood, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12M / ; C12M / ;
U.S. Cl.
CPC ...
435240240 ; 43524025 ; 435284 ; 435286 ; 435311 ; 435312 ; 435313 ; 435315 ;
Abstract
A suspension cell culture system where a culture chamber is rotatable about a horizontal axis and has a vertical large area oxygen transmissible membrane spaced a distance about 0.25 inches less than 1.0 inches from a facing vertical wall surface for effective transmission of oxygen to cells in suspension in the culture chamber. The facing vertical wall surface can be a dialysis membrane for exchange of fresh nutrient from a dialysis chamber with cell waste product in the culture chamber.