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. 31, 2011
Filed:
Oct. 23, 2009
Applicants:
Paul Douglas Vernooy, Hockessin, DE (US);
Alfred T. Walker, Oxford, PA (US);
Kenneth Warren Hang, Hillsborough, NC (US);
Inventors:
Paul Douglas Vernooy, Hockessin, DE (US);
Alfred T. Walker, Oxford, PA (US);
Kenneth Warren Hang, Hillsborough, NC (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/08 (2006.01); C04B 35/622 (2006.01);
U.S. Cl.
CPC ...
Abstract
A non-lead composition for use as a thick-film resistor paste in electronic applications. The composition comprises particles of LiRuOof diameter between 0.5 and 5 microns and a lead-free frit. The particles have had the lithium at or near primarily the surface of the particle at least partially exchanged for atoms of other metals.