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.:

US 8580573 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 12, 2013

Filed:

Jun. 17, 2013
Applicant:

George G. Combs, McMurray, 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);
U.S. Cl.
CPC ...
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.


Find Patent Forward Citations

Combs, George. (2013). Highly fluorescent markers for fluids or articles (U.S. Patent No. 8580573). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8580573

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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