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:
Nov. 27, 1990
Filed:
Sep. 02, 1988
Applicant:
Inventors:
Assignee:
SRI International, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204403 ; 204418 ; 435-4 ; 435-7 ; 435180 ; 435817 ; 436528 ; 436531 ; 436535 ; 436806 ;
Abstract
The present invention provides a stabilized potassium ion-selective membrane comprising lysine-substituted valinomycin covalently bound to a polymeric substrate. The membrane of the invention exhibits improved stability and is used either on ISEs or on solid-state coated wire or semiconductor devices.