Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7065186 | Telephone based access to instant messaging | Paul Michael Brennan | 2006-06-20 |
| 6868140 | Telephony call control using a data network and a graphical user interface and exchanging datagrams between parties to a telephone call | Brian Cruickshank | 2005-03-15 |
| 6735295 | Call waiting messaging | Paul Michael Brennan, Robert A. Williamson, Anne Grosman, Pieter Groen | 2004-05-11 |
| 5865081 | Anti-roll rake | — | 1999-02-02 |
| 4655649 | Drill press switch handle | Andrew L. Itzov | 1987-04-07 |