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:
Jul. 28, 2009
Filed:
May. 13, 2004
Alessandro Catorcini, Redmond, WA (US);
Arungundram Narendran, Bellevue, WA (US);
Danny Van Velzen, Redmond, WA (US);
Mihaela C. Cris, Redmond, WA (US);
Alessandro Catorcini, Redmond, WA (US);
Arungundram Narendran, Bellevue, WA (US);
Danny van Velzen, Redmond, WA (US);
Mihaela C. Cris, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Digital signatures having an embedded view of signed data that lock the signed data but permit it to be repurposed are described. One of these digital signatures can be repurposed for signature by others, such as co-signers or counter-signers. Another of these digital signatures includes embedded information sufficient to recreate the embedded view using the signed data. A method for building a digital signature is also described that permits signing different parts of an electronic document.