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:
Aug. 26, 2008
Filed:
Jan. 18, 2005
Applicant:
Albert P Malvino, Corpus Christi, TX (US);
Inventor:
Albert P Malvino, Corpus Christi, TX (US);
Assignee:
Research Frontiers Incorporated, Woodbury, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and circuits for distributing power to suspended-particle-device (SPD) film products including SPD windows, SPD shades, and other SPD products, which are referred to generally as SPD loads. A driving voltage derived from a primary power source is provided to an SPD load by backbone wiring which carries a low AC or DC voltage derived from the primary power source, and a conversion stage which converts the low voltage to an AC driving voltage which is then supplied to the SPD load.