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:
Mar. 29, 2011

Filed:

Mar. 21, 2005
Applicants:

Jason Cahill, Woodinville, WA (US);

John Fan, Duvall, WA (US);

Jeffrey Johnson, Bellevue, WA (US);

Lauren Antonoff, Seattle, WA (US);

Inventors:

Jason Cahill, Woodinville, WA (US);

John Fan, Duvall, WA (US);

Jeffrey Johnson, Bellevue, WA (US);

Lauren Antonoff, Seattle, WA (US);

Assignee:

Microsoft Corporation, Redmond, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods, systems, and computer program products digitally sign an electronic entity, such as an electronic document, with a user-entered signature image. The method involves rendering the document and rendering a sign dialog. Rendering the sign dialog includes prompting the signer to write a signature to sign the document. The method also involves receiving and inking the signature from the signer, creating a digital representation incorporating an image of the signature; creating a unique value of the image of the signature and of the document, and saving the unique value in association with the document thereby digitally signing the document. The unique value saved in association with the document is verifiable for authenticity by users of the document. Additionally, the method may also involve automatically selecting a signing certificate appropriate for the signer based on selection criteria.


Find Patent Forward Citations

Loading…