Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8668183 | Dual-direction in-tank magnetic safety valve | Kirste Ann MANUEL | 2014-03-11 |
| 8479566 | Pipeline leak detection system | Donald LaFleur | 2013-07-09 |
| 6824093 | Method of controlling pitch on a gyroplane and a gyroplane | Duane N. Hunn, Sr. | 2004-11-30 |
| 6439311 | Method of retarding sand build up in heavy oil wells | — | 2002-08-27 |
| D335119 | Gyroplane | Daniel Haseloh | 1993-04-27 |
| 5098033 | Gyroplane with tilting mast | Daniel Haseloh | 1992-03-24 |