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. 13, 2011
Filed:
Sep. 03, 2006
Applicants:
Peter W. Shackle, Rolling Hills, CA (US);
Zhiqing Wu, Torrance, CA (US);
Inventors:
Peter W. Shackle, Rolling Hills, CA (US);
Zhiqing Wu, Torrance, CA (US);
Assignee:
Fulham Company Ltd., Kowloon, HK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 39/04 (2006.01); G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuits are disclosed, for example for driving fluorescent lamps, and such circuits may form part of a ballast. First and second sensing circuits can apply respective signals to a control circuit as a function of an end-of-lamp life condition and of the number of re-strike attempts.