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:
Apr. 23, 2013
Filed:
Sep. 28, 2004
Applicants:
Guido Appenzeller, Menlo Park, CA (US);
Timothy Y. Choi, San Mateo, CA (US);
Matthew J. Pauker, San Francisco, CA (US);
Inventors:
Guido Appenzeller, Menlo Park, CA (US);
Timothy Y. Choi, San Mateo, CA (US);
Matthew J. Pauker, San Francisco, CA (US);
Assignee:
Voltage Security, Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems and methods are provided for using digital signatures to help distinguish legitimate email from known or trusted organizations from unsolicited email or forged email. Digital signatures may be used in an email body, mail header, or embedded links. The signatures may be verified by a recipient or internet service provider and may be used in conjunction with spam filtering applications.