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:
Jul. 14, 2009
Filed:
May. 05, 2006
Applicants:
Declan Farrell, Dun Laoghaire, IE;
Santosh Y Limaye, El Cajon, CA (US);
Shanthi Subramanian, San Diego, CA (US);
Inventors:
Declan Farrell, Dun Laoghaire, IE;
Santosh Y Limaye, El Cajon, CA (US);
Shanthi Subramanian, San Diego, CA (US);
Assignee:
Vesta Research, Ltd., County Dublin, IE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/02 (2006.01); B32B 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Porous silicon particles are prepared from a metallurgical grade silicon powder having an initial particle size greater than about 1 micron is presented. Each porous silicon particle comprises a solid core surrounded by a porous silicon layer having a thickness greater than about 0.5 microns.