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:
Jan. 26, 2010
Filed:
Feb. 26, 2002
Applicants:
Adrian Ponce, Altadena, CA (US);
Dmitri A. Kossakovski, Pasadena, CA (US);
Gregory H. Bearman, Pasadena, CA (US);
Inventors:
Adrian Ponce, Altadena, CA (US);
Dmitri A. Kossakovski, Pasadena, CA (US);
Gregory H. Bearman, Pasadena, CA (US);
Assignee:
California Institute of Technology, Pasadena, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/17 (2006.01); G01N 21/84 (2006.01); G02B 6/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Optical time domain reflectometry caused by absorption of a volatile or analyte into the fiber optic cladding is used an optical nose. The fiber optics () are covered with a gas permeable film () which is patterned to leave millimeter wide gas permeable notches (-). The notches contain a sensing polymer that responds to different gases by expanding or contracting.