Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7159039 | Systems and methods for providing in-band and out-band message processing | Mark J. Hahn, Kevin Brophy, Luis D. Letjer, David C. Robbins | 2007-01-02 |
| 6782412 | Systems and methods for providing unified multimedia communication services | Kevin Brophy, Mark J. Hahn, Luis Lejter, David C. Robbins, John Schettino | 2004-08-24 |
| 5321833 | Adaptive ranking system for information retrieval | Shih-Chio Chang, Min Du | 1994-06-14 |