Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889158 | Pressure/flow compensated direct acting pressure regulator | James C. Hawkins, Stanley D. Hall | 1989-12-26 |
| 4842013 | Droop compensated direct acting pressure regulator | Mark E. Hood | 1989-06-27 |