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. 05, 1995
Filed:
Sep. 28, 1994
Applicant:
Inventors:
Luigi Modica, Rome, IT;
Lucio De Angelis, Rome, IT;
Assignees:
Eniricerche S.p.A., Milan, IT;
SNAM S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 3106 ;
Abstract
For sensing gaseous hydrocarbons in a gas mixture, a device consisting of two sensitive elements, one being a reference element, which are heated to different temperatures. The sensors, formed by subjecting films deposited by silk-screen processes to heat treatment at high temperature, are connected to an electronic evaluation circuit.