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:
Jun. 17, 1980
Filed:
Feb. 23, 1978
Applicant:
Inventors:
Wilhelmus F Knippenberg, Eindhoven, NL;
Gerrit Verspui, Eindhoven, NL;
Siegfried H Hagen, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; H01C / ;
U.S. Cl.
CPC ...
427101 ; 427 85 ; 427 95 ; 427249 ; 338222 ; 338 / ; 338308 ; 148174 ; 148175 ; 252516 ;
Abstract
A method of making an electric resistor having a negative temperature coefficient of resistance whose resistance body consists of p-type doped pyrolytic polycrystalline cubic silicon carbide.