Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 9439822 | Lifting assembly | Anita Davy | 2016-09-13 | |
| 7133508 | Prepaid long distance call system and method | Ferial Parsa, Brent V. Bell, John T. Peketz, Martin R. Marks | 2006-11-07 | $27,820,000 |
| 6748058 | Caller identification system with announcement capability | Peggy S. Schwend, Martin R. Marks, Brent V. Bell, Douglas F. Reynolds | 2004-06-08 | $29,690,000 |
| 5751793 | Method and instructions for visual voice messaging user interface | Susan Davies | 1998-05-12 |