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:
Jan. 04, 1977
Filed:
Jul. 23, 1975
Applicant:
Inventor:
Leopold Heijne, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; GO1N / ;
U.S. Cl.
CPC ...
338 34 ; 2325 / ; 73 2 / ; 2041 / ; 324 / ; 338325 ; 338328 ; 357 25 ;
Abstract
Measuring cell for determining oxygen concentrations in a gas mixture, which cell comprises two elements made of a semiconductive oxidic material which is doped so as to have n-type and p-type conductivity respectively and which are separated by a metal layer, the electric resistance of the said semiconductive oxide depending upon the oxygen pressure. The cell is used for carburation control in an internal combustion engine.
Heijne, Leopold. (1977). Measuring cell for determining oxygen concentrations in a gas mixture (U.S. Patent No. 4001756). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4001756
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile