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:
Nov. 01, 2011
Filed:
Jun. 06, 2007
Applicants:
Anthony Nicholas Jarvis, Widnes, GB;
Martin Robert Walker, Widnes, GB;
Inventors:
Anthony Nicholas Jarvis, Widnes, GB;
Martin Robert Walker, Widnes, GB;
Assignee:
Datalase Ltd., Cheshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/00 (2006.01); G03F 1/00 (2006.01); G03F 7/004 (2006.01); C03C 1/00 (2006.01); C09C 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ink formulation comprises a marking component, e.g. ammonium octamolybdate, and a metal salt that absorbs laser irradiation at 780-2500 nm, e.g. reduced indium tin oxide, and thereby causes the marking component to change colour.