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:
Jun. 30, 2009
Filed:
Mar. 04, 2005
Applicants:
Mirko Lehmann, Freiburg, DE;
Heinz-peter Frerichs, St. Peter, DE;
Christoph Wilbertz, Gundelfingen, DE;
Inventors:
Mirko Lehmann, Freiburg, DE;
Heinz-Peter Frerichs, St. Peter, DE;
Christoph Wilbertz, Gundelfingen, DE;
Assignee:
Micronas GmbH, Freiburg i.Br., DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for detecting a gas or gas mixture having at least one first gas sensor designed as an SGFET and at least—one second, additional gas sensor designed as a Lundström-FET. The gas sensors are connected to a processing device designed to analyze the measurement signals from both types of gas sensors in order to detect the gas or gas mixture.