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. 10, 2001
Filed:
Apr. 28, 1994
Applicant:
Inventors:
David Allen Barker, Cypress, TX (US);
Thomas Clayton Forschner, Richmond, TX (US);
Randall Lee Shearer, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/700 ; G01N 3/100 ; G01N 3/300 ;
U.S. Cl.
CPC ...
G01N 3/700 ; G01N 3/100 ; G01N 3/300 ;
Abstract
The present invention is directed to tracer-containing chemical compositions and to the use of at least one perfluorocarbon tracer in such compositions to provide a means of identifying and quantitatively analyzing such compositions.