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. 30, 2009
Filed:
Sep. 23, 1999
Applicants:
Joerg Schwenk, Dieburg, DE;
Friedrich Toensing, Hoechst, DE;
Inventors:
Joerg Schwenk, Dieburg, DE;
Friedrich Toensing, Hoechst, DE;
Assignee:
Deutsche Telekom AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Verification of true authorship on the basis of digital watermarks is described. The digital watermark can be provided with the proof of identity id and/or with the hash value h(m) of the document and/or with a time value t.
Schwenk, Joerg. (2009). Method for generating digital watermarks for electronic documents (U.S. Patent No. 7555649). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7555649
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile