Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356098 | Communication system for transmitting RF signals representative of defects or hazards in a railway system having frangible glass activation | — | 1994-10-18 |
| 4875019 | Receiver preamplifier with tuned circuit adapted for Loran reception | Mark Monson, Thomas P. Blandino, Dennis E. Bahr | 1989-10-17 |
| 4814771 | Apparatus and method for receiving and proessing Loran signals | Dennis E. Bahr, Neil K. Fortney, Michael Skroch, Erich T. Ziemann | 1989-03-21 |
| 4796184 | Automatic blood pressure measuring device and method | Dennis E. Bahr, Kenneth R. Clark | 1989-01-03 |
| 4503290 | Automatic line supervisor for use with a call concentrator | Paul Henning | 1985-03-05 |
| 4401856 | Control system for handling direct inward dialed telephone calls | William J. Curtin, Paul Henning | 1983-08-30 |