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:
Aug. 19, 2014
Filed:
Oct. 11, 2013
Applicant:
Bayer Materialscience Llc, Pittsburgh, PA (US);
Inventor:
George G. Combs, McMurray, PA (US);
Assignee:
Bayer MaterialScience LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/76 (2006.01); C09K 11/06 (2006.01); C08G 18/76 (2006.01); C10L 1/00 (2006.01); C10L 1/238 (2006.01); C08G 18/48 (2006.01); C08G 18/32 (2006.01); C10L 1/24 (2006.01);
U.S. Cl.
CPC ...
C08G 18/3203 (2013.01); C09K 11/06 (2013.01); C08G 18/76 (2013.01); C10L 1/003 (2013.01); C10L 1/2381 (2013.01); C08G 18/4879 (2013.01); C10L 1/2475 (2013.01);
Abstract
The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.