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:
Jul. 20, 1999
Filed:
May. 13, 1996
Applicant:
Inventors:
Marian L Kruzel, Houston, TX (US);
Kurt S Myers, Houston, TX (US);
Assignee:
Ferro Sensor, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 56 ; 436 74 ; 436 84 ; 436163 ; 436169 ; 422 57 ; 422 58 ; 422 61 ;
Abstract
The present invention is directed to iron sensors. Immobilized in close proximity of the potential or pH measuring surface of a proton sensing device, minute quantities of an iron chelator such as siderophores or transferring cause detectable variation of the potential or pH upon the binding of iron. The sensing devices for measuring this change in potential or pH include the iron chelator-modified ion-selective field effect transistors (IC-ISFET) and/or pH indicator papers of the present invention.