Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7230833 | Electronics module retention system | — | 2007-06-12 |
| 7150194 | Gauge pressure sensor for hazardous applications | Donald Pepperling, Richard J. Vanderah | 2006-12-19 |
| 6894659 | Solar panel and antenna mounted on an explosion-proof enclosure | Donald Pepperling, Richard J. Vanderah, David Charles Sanderson | 2005-05-17 |
| 6715360 | Gauge pressure sensor for hazardous applications | Donald Pepperling, Richard J. Vanderah | 2004-04-06 |
| 5901323 | Process controller with interchangeable individual I/O units | Jon B. Milliken, Richard J. Vanderah | 1999-05-04 |
| 4754778 | Velocity boost body with wrap-around pitot tube | John W. Duffy | 1988-07-05 |
| 4624442 | Control regulator having a rolling diaphragm | John W. Duffy, William J. Bonzer, Gary L. Scott, Ralph W. Zeigler | 1986-11-25 |