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:
Sep. 03, 1991
Filed:
Jun. 01, 1988
Applicant:
Inventors:
Eddy Chapoteau, Brooklyn, NY (US);
Bronislaw P Czech, Peekskill, NY (US);
Carl R Gebauer, Crompond, NY (US);
Koon-Wah Leong, Ossining, NY (US);
Anand Kumar, Southfields, NY (US);
Assignee:
Technicon Instruments Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436 74 ; 436 73 ; 436 79 ; 436169 ; 436170 ;
Abstract
The invention is reagents and procedures for determining an amount of cations present in a sample, the reagent including one or more chromogenic cryptand compounds of formula I ##STR1## wherein k and j, either same or different, are equal to 1 to about 5;