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:
Mar. 18, 2008
Filed:
Dec. 05, 2005
Applicant:
Conrad M. Yu, Oakley, CA (US);
Inventor:
Conrad M. Yu, Oakley, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/06 (2006.01); G01N 30/26 (2006.01); G01N 30/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hand-held, ultra-sensitive gas chromatograph which provides real time detection and analysis of chemical compounds or impurities is disclosed. The detection sensitivity ranges from parts per trillion to parts per million with an average retention time ranging from thirty to forty-five seconds. Optimum calculated effective plate number is 55,000, with a response time on the order of two minutes. The self-contained apparatus operates on twenty-four watts, weighs twelve pounds, and measures 8″×6″×13.″