Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5578937 | Instrument for analysis of electric motors based on slip-poles component | Howard D. Haynes, Curtis W. Ayers | 1996-11-26 |
| 5519337 | Motor monitoring method and apparatus using high frequency current components | — | 1996-05-21 |
| 5487302 | Method and system for measuring gate valve clearances and seating force | Howard D. Haynes, John C. Moyers, Brian K. Stewart | 1996-01-30 |
| 5483841 | Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating | — | 1996-01-16 |
| 5236011 | Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field | Howard D. Haynes | 1993-08-17 |
| 5193568 | Noninvasive valve monitor using alternating electromagnetic field | David M. Eissenberg, Howard D. Haynes | 1993-03-16 |