Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833922 | Modular transmitter | Roger L. Frick, David A. Broden | 1989-05-30 |
| 4798089 | Isolator apparatus | Roger L. Frick | 1989-01-17 |
| D297315 | Compact differential pressure transmitter | Gerald R. Cucci | 1988-08-23 |
| 4745810 | Flangeless transmitter coupling to a flange adapter union | Roger L. Frick, Gerald R. Cucci | 1988-05-24 |