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. 17, 2013
Filed:
Jan. 22, 2010
Applicants:
Beth A. Jones, Hook, GB;
Paul Rennie, Bracknell, GB;
Robert Pallant, Slough, GB;
Paul D. Smith, Brighton, GB;
Inventors:
Beth A. Jones, Hook, GB;
Paul Rennie, Bracknell, GB;
Robert Pallant, Slough, GB;
Paul D. Smith, Brighton, GB;
Assignee:
Kidde Technologies, Inc., Wilson, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sensor apparatus includes a metal oxide semiconductor ('MOS') sensor with a gas-sensing surface normally having a first sensitivity to a first species of flammable gas and a second sensitivity to a second, different species of flammable gas. A selective sensitivity-enhancement layer is disposed on the gas-sensing surface such that the first sensitivity becomes increased and the second sensitivity remains substantially unchanged.