Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8135955 | Device and method for detecting a manipulation of an information signal | Ralph Kulessa, Jörg Pickel, Stefan Krägeloh, Patrick Aichroth, Frank Siebenhaar +1 more | 2012-03-13 |
| 7917763 | Device and method for detecting a manipulation of an information signal | Ralph Kulessa, Jörg Pickel, Stefan Krägeloh, Patrick Aichroth, Frank Siebenhaar +1 more | 2011-03-29 |
| 7886152 | Method and device for embedding watermark information and method and device for extracting embedded watermark information | Christian Neubauer, Juergen Herre, Ralph Kulessa, Frank Siebenhaar | 2011-02-08 |