Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7968848 | Infrared radiation sources, sensors and source combinations, and methods of manufacture | Edward A. Johnson, James T. Daly, John S. Wollam | 2011-06-28 |
| 7511274 | Infrared radiation sources, sensors and source combinations, and methods of manufacture | Edward A. Johnson, James T. Daly, John S. Wollam | 2009-03-31 |
| 7157802 | Electrical power source | — | 2007-01-02 |
| 5388525 | Railway car retarder | — | 1995-02-14 |