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:
Dec. 18, 1990
Filed:
Sep. 03, 1987
Applicant:
Inventors:
Robert C Dean, Jr, Norwich, VT (US);
Peter V Grela, Windsor, VT (US);
Subhash B Karkare, Thousand Oaks, CA (US);
Peter W Runstadler, Jr, Hanover, NH (US);
Assignee:
Verax Corporation, Lebanon, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435 703 ; 435 711 ; 43524024 ; 435243 ; 435813 ; 435819 ;
Abstract
A fluidized bed reactor and reaction process, particularly well-suited for culturing cells, for example, for tissue culture and fermentation processes, are described which involve the treatment of at least a portion of the fluid exiting the fluidized bed reactor in a side loop in a manner to alter its temperature or composition, e.g., oxygenation, with recirculation of this treated fluid to the reactor as a portion of the fluid causing bed fluidization.