Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712071 | Motor operated valve analysis and testing system | Arthur G. Charbonneau, Dwaine A. Godfrey, Steven Nafziger | 1987-12-08 |
| 4693113 | Motor operated valve analysis and testing system | Steven Nafziger, Arthur G. Charbonneau, Dwaine A. Godfrey | 1987-09-15 |
| 4690003 | Motor operated valve analysis and testing system | Steven Nafziger | 1987-09-01 |
| 4542649 | Motor operated valve analysis and testing system | Arthur G. Charbonneau, Dwaine A. Godfrey, Steven Nafziger | 1985-09-24 |