Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11415203 | Actuators and external controllers therefor | Amir Hooshang Amighi | 2022-08-16 |
| 11236807 | Actuators for use with an external controller | Amir Hooshang Amighi | 2022-02-01 |
| 7769544 | Autonomous vehicle railroad crossing warning system | Gordon M. Melby | 2010-08-03 |
| 6750829 | Outdoor changeable message sign | Eugene Luoma, John P. Nicholson | 2004-06-15 |
| 6101750 | Portable message sign | Amir Hooshang Amighi | 2000-08-15 |
| 5542203 | Mobile sign with solar panel | Eugene Luoma | 1996-08-06 |
| 5262841 | Vacuum particle detector | Thomas Halvorsen | 1993-11-16 |
| 5121988 | Single particle detector method and apparatus utilizing light extinction within a sheet of light | Stanley L. Kaufman, David Blackford, Frank D. Dorman, Peter P. Hairston | 1992-06-16 |
| 5085500 | Non-imaging laser particle counter | — | 1992-02-04 |