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:
May. 04, 2010
Filed:
Jun. 15, 2005
Applicants:
Martin U. Schmidt, Frankfurt am Main, DE;
Gerald Mehltretter, Wiesbaden, DE;
Inventors:
Martin U. Schmidt, Frankfurt am Main, DE;
Gerald Mehltretter, Wiesbaden, DE;
Assignee:
Clariant Produkte (Deutschland) GmbH, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B 67/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
Novel crystalline modifications (eta, theta, iota, kappa) of the C.I. Pigment Yellow 181, obtained when one of the known phases or another inventive phase of said pigment is treated with specific solvents. The novel crystalline phases are characterized by yellow shades and excellent coloring properties.