Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6233804 | Tool for clinching two members together | — | 2001-05-22 |
| 4958371 | Method and apparatus for determining when a telephone handset is off-hook | Joseph A. Damoci, Matthew F. Kern, Russell J. Welsh | 1990-09-18 |
| 4955070 | Apparatus and method for automatically monitoring broadcast band listening habits | Russell J. Welsh | 1990-09-04 |
| 4845741 | Modem ringing supression circuit | — | 1989-07-04 |