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:
Sep. 01, 1998
Filed:
May. 26, 1995
Applicant:
Inventors:
Margherita Zanini-Fisher, Bloomfield Township, MI (US);
Jacobus Visser, Southfield, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438 54 ; 438 48 ; 438 53 ; 216-2 ; 216 57 ;
Abstract
A gas sensor and a method for measuring gas constituents, particularly exhaust gas constituents for an internal combustion engine, comprising a pair of polysilicon plates, each plate supporting a pair of resistors, one serving as a heater and the other as a thermometer, one plate being coated with a catalyst to promote combustion of unburned combustible gas constituents, wherein provision is made for reducing temperature gradients across the plates and for effecting temperature uniformity of the catalyst while maintaining a high degree of structural integrity.