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:
Jun. 14, 2011
Filed:
Sep. 17, 2007
Applicants:
John C. Wolfe, Houston, TX (US);
Paul Ruchhoeft, Missouri City, TX (US);
Inventors:
John C. Wolfe, Houston, TX (US);
Paul Ruchhoeft, Missouri City, TX (US);
Assignee:
University of Houston, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21K 5/02 (2006.01); G21K 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Various embodiments disclose devices and methods for fabricating microporous particulate filters with regularly space pores wherein sheet membrane substrates are exposed to energetic particle radiation through a mask and the damaged regions removed in a suitable developer. The required depth of field is achieved by using energetic particles to minimize diffraction and an energetic particle source with suitably small diameter.