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:
May. 25, 2010
Filed:
Sep. 18, 2001
Applicants:
Myung-sam Cho, Pinole, CA (US);
Helena Yee, San Francisco, CA (US);
Inventors:
Myung-Sam Cho, Pinole, CA (US);
Helena Yee, San Francisco, CA (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 15/00 (2006.01); C12N 15/11 (2006.01); C12N 15/63 (2006.01); C12N 15/67 (2006.01); C12N 15/85 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mammalian cell gene expression vector system comprising (a) an episomal maintenance system (b), a strong promoter/enhancer, (c) a protein transactivation system and (d) DNA coding for a heterologous protein. The episomal maintenance and protein transactivation systems can include sub-elements located on the same or different plasmids within the cell expression system.