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:
Aug. 06, 1991
Filed:
Sep. 08, 1989
Applicant:
Inventors:
Aldo M Pitt, Sudbury, MA (US);
Michael J Steuck, North Reading, MA (US);
Assignee:
Millipore Corporation, Bedford, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; C12N / ;
U.S. Cl.
CPC ...
424443 ; 424 78 ; 424 81 ; 424484 ; 424486 ; 435174 ; 435180 ; 4352402 ; 43524023 ; 435240241 ; 435240243 ;
Abstract
A composite, porous membrane is formed from a porous polymer membrane having desired bulk properties on which is directly coated a cell attachment and/or growth promoting composition and a cross-linked polymer having desired surface properties. The composite membrane retains the porosity of the porous polymeric membrane. In one embodiment, when the substrate is polytetrafluoroethylene the composite is microscopically transparent.