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:
Apr. 25, 1978
Filed:
Sep. 22, 1975
Applicant:
Inventors:
Wilhelmus Franciscus Knippenberg, Eindhoven, NL;
Gerrit Verspui, Eindhoven, NL;
Siegfried Hendrik Hagen, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338 / ; 338 20 ; 338308 ;
Abstract
An electric resistor having a negative temperature coefficient of the electrical resistance whose resistance body consists of p-type doped pyrolytic polycrystalline cubic silicon carbide.