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. 09, 2014
Filed:
Feb. 06, 2012
Applicants:
James R. White, San Mateo, CA (US);
Christopher John White, Palo Alto, CA (US);
Inventors:
James R. White, San Mateo, CA (US);
Christopher John White, Palo Alto, CA (US);
Assignee:
Active Spectrum, Inc., Foster City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01R 33/343 (2006.01); H01P 7/06 (2006.01); G01N 24/10 (2006.01); G01R 33/345 (2006.01); G01N 24/08 (2006.01); G01R 33/30 (2006.01); G01R 33/34 (2006.01); G01R 33/60 (2006.01);
U.S. Cl.
CPC ...
G01N 24/10 (2013.01); G01R 33/343 (2013.01); H01P 7/06 (2013.01); G01R 33/345 (2013.01); G01N 24/08 (2013.01); G01R 33/307 (2013.01); G01R 33/34 (2013.01); G01R 33/60 (2013.01);
Abstract
A method of and miniaturized apparatus adapted for in-situ measurement of degradation of automotive fluids and the like by micro-electron spin resonance (ESR) spectrometry, wherein the use of a modulated constant magnetic field in an RF resonating variable frequency microwave cavity resonator through which a fluid sample is passed, enables direct detection of molecular changes in such fluid sample resulting from fluid degradation during use.