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:
Jul. 12, 2005
Filed:
Mar. 13, 2002
Allan Blase Joseph Rodrigues, Bloomfield, MI (US);
Ken Stephen Schermacher, Chadds Ford, PA (US);
Anthony Joseph Martino, West Chester, PA (US);
Douglas E. Spahr, Wilmington, DE (US);
Allan Blase Joseph Rodrigues, Bloomfield, MI (US);
Ken Stephen Schermacher, Chadds Ford, PA (US);
Anthony Joseph Martino, West Chester, PA (US);
Douglas E. Spahr, Wilmington, DE (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
An improved process for making pigment dispersions containing a single pigment that match the tinting strength of a standard dispersion. The process employs a faster and more accurate wet measurement technique for analyzing and matching the dispersions to a standard that utilizes the spectral transmittance of the wet dispersions over the visible spectrum.