Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7148652 | Method and apparatus for determining and handling brake failures in open loop variable frequency drive motors | Ace Ghanemi, Michael L. Perkins, Michael J. Roessler | 2006-12-12 |
| 5846020 | Pre-fabricated multi-level roadway structure | — | 1998-12-08 |
| 4613433 | Anaerobic fermentor | — | 1986-09-23 |
| D258813 | Boat | — | 1981-04-07 |