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. 21, 2005
Filed:
Nov. 13, 2002
Applicants:
Youssef M. Habib, Lancaster, PA (US);
John G. Bryan, Middletown, PA (US);
Charles W. Stoll, Mountville, PA (US);
John W. Steinbeck, Fitzwilliam, NH (US);
Inventors:
Youssef M. Habib, Lancaster, PA (US);
John G. Bryan, Middletown, PA (US);
Charles W. Stoll, Mountville, PA (US);
John W. Steinbeck, Fitzwilliam, NH (US);
Assignee:
Burle Technologies, Inc., Oxford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J009/12 ;
U.S. Cl.
CPC ...
Abstract
An electron-emitting photocathode includes a base and a large number of projecting elements such as microscopic wires projecting from a surface of the base. The photocathode has high quantum efficiency, and hence can be used as the emitting element in a sensitive phototube.