Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6888936 | User controlled location sharing during a communication | Pieter Groen, Paul Michael Brennan, Anne Grosman | 2005-05-03 |
| 6735295 | Call waiting messaging | Paul Michael Brennan, John C. Myers, Anne Grosman, Pieter Groen | 2004-05-11 |
| 6650746 | Urgency of call indication to called party through distinctive notification | Pieter Groen, Anne Grosman | 2003-11-18 |
| 6148063 | Semi-interruptible messages for telephone systems making voice announcements | Paul Michael Brennan, Anne Grosman | 2000-11-14 |
| 6047255 | Method and system for producing speech signals | — | 2000-04-04 |
| 4303973 | Industrial process control system | Roger W. Ford | 1981-12-01 |