Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6965240 | Apparatus and methods for analyzing particles using light-scattering sensors and ionization sensors | Charles D. Litton, Jon C. Volkwein | 2005-11-15 |
| 6810353 | Non-directional magnet field based proximity receiver with multiple warning and machine shutdown capability | — | 2004-10-26 |
| 5939986 | Mobile machine hazardous working zone warning system | Carl W. Ganoe | 1999-08-17 |
| 4567763 | Passive encoder for range knobs | — | 1986-02-04 |
| 4377726 | Selective paging and intercommunication system | Richard Watson | 1983-03-22 |