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:
Jan. 02, 2007
Filed:
Jun. 19, 2003
Applicants:
Rajiv Manohar Banavali, Rydal, PA (US);
Kim Sang Ho, Richboro, PA (US);
Inventors:
Rajiv Manohar Banavali, Rydal, PA (US);
Kim Sang Ho, Richboro, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01M 139/00 (2006.01); C10L 1/28 (2006.01); C10L 1/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon a pyrazinoporphyrazine dye having an absorption maximum from 700 nm to 900 nm.