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:
Apr. 30, 1985
Filed:
Nov. 19, 1982
Applicant:
Inventors:
Ivar Giaever, Schenectady, NY (US);
Richard C Keese, Schoharie, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
435241 ; 435948 ; 435240 ;
Abstract
Droplets having an electrical charge on the surface thereof are prepared from a first liquid and dispersed in a second liquid, a sterile aqueous tissue culture medium containing serum proteins. The first liquid is non-toxic to living cells and is relatively immiscible with water. The electrical charge on the surfaces of the droplets has a charge density in the range of from about 10 to about 100 charges per square nanometer. Serum protein films adhere to the charged droplets strongly enough to prevent rupture by human fibroblast cells grown thereon.