Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6765902 | Method and apparatus for network-based telephone communication without a separate call manager unit | — | 2004-07-20 |
| 6757363 | Method and apparatus for operating a telephone as an independent network client | Richard B. Platt, Paul S. Hahn, Richard A. Dunlap, Jeffery A. Sanders | 2004-06-29 |
| 6741705 | System and method for securing voice mail messages | K. Paul Clark, Charles A. Munro, Jeffrey A. Sanders | 2004-05-25 |