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.

Date of Patent:
Jul. 18, 2006

Filed:

Jan. 27, 2004
Applicants:

Richard L Fink, Austin, TX (US);

Leif H. Thuesen, Austin, TX (US);

Inventors:

Richard L Fink, Austin, TX (US);

Leif H. Thuesen, Austin, TX (US);

Assignee:

Nano-Proprietary, Inc., Austin, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

By using a large area cathode, an electron source can be made that can irradiate a large area more uniformly and more efficiently than currently available devices. The electron emitter can be a carbon film cold cathode, a microtip or some other emitter. It can be patterned. The cathode can be assembled with electrodes for scanning the electron source.


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