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:
Oct. 12, 1999
Filed:
Jul. 28, 1997
Applicant:
Inventors:
Carsten Plog, Markdorf, DE;
Werner Maunz, Markdorf, DE;
Assignee:
Dornier GmbH LHG, Friedrichshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
436139 ; 422 90 ; 422 98 ; 436140 ; 436141 ; 436142 ; 436143 ; 436149 ; 436151 ; 436152 ; 436159 ; 436160 ;
Abstract
The invention provides a gas sensor for selective detection of hydrocarbons in low-oxygen gases, having a capacitive element and a gas-permeable sensitive layer as a dielectric. The sensitive layer is a precious-metal-doped zeolite which has a regular crystalline structure made of primary pores whose diameter is in the order of the gas-kinetic diameter of the gas molecules to be detected.