Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4950998 | Continuous condition sensing system | Steven Petersen, Herbert A. Shauger, Jr. | 1990-08-21 |
| 4849754 | Remotely calibratable instrument system | Frederick L. Maltby, Richard Hall, Howard S. Hoopes, Steven Petersen | 1989-07-18 |
| 4723122 | Remotely calibratable instrument system | Frederick L. Maltby, Richard Hall, Howard S. Hoopes, Steven Petersen | 1988-02-02 |