Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9562545 | Pressure switch for oil supply | Glenn C. Lemmers, Jr., David S. Behling, Paul K. Seiler, Charles R. Reuter, Joshua J. Krecklow +1 more | 2017-02-07 |
| 9194433 | Cage bearing with oil retaining shield | Liangheng Qiu, David S. Behling | 2015-11-24 |
| 8568089 | Gear arrangement | Glenn C. Lemmers, Jr., David S. Behling | 2013-10-29 |
| 4877093 | Spring actuated power swivel support rollers | David B. Ford, James E. Lynch | 1989-10-31 |