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:
Feb. 22, 2000
Filed:
May. 18, 1998
Applicant:
Inventors:
Theodor Graser, Stuttgart, DE;
Hnas-Joerg Renz, Leinfelden-Echterdingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
204426 ; 73 3106 ; 438 68 ;
Abstract
A sensor element for an electrochemical sensor that determines the oxygen content of exhaust gases produced by internal combustion engines. The sensor element includes at least one measurement device and at least one heating device associated with the measurement device. The measurement device and the heating device both include individual functional layers laminated one above another. The heating device is covered with a surface layer that covers not only the surface of the outermost layer of the functional layers of the heating device, but also the side surfaces of all the functional layers of the heating device.