Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8393241 | Sequential gear shifting mechanism | Neil H. Akkerman | 2013-03-12 |
| 7353697 | System for mounting an engine to a frame | Neil H. Akkerman | 2008-04-08 |
| 4852648 | Well installation in which electrical current is supplied for a source at the wellhead to an electrically responsive device located a substantial distance below the wellhead | Neil H. Akkerman | 1989-08-01 |
| 4519575 | Valves and valve actuators | Neil H. Akkerman | 1985-05-28 |