Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7680481 | Method and apparatus for linking charging records | Richard P. Ejzak, Bharat H. Patel, Thomas Trayer Towle | 2010-03-16 |
| 7299047 | Wireless communication system enhanced call recovery | Michael F. Dolan, Douglas Knisely, Orlett Wanda Pearson, David Albert Rossetti | 2007-11-20 |
| 7200408 | Selective blocking in a communication network | — | 2007-04-03 |
| 6819921 | Method of subscriber initiated porting of a wireless number for a mobile station | Douglas Rollender | 2004-11-16 |