Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828672 | Unitary self-generating reference gas sensor | Chikara Hirayama | 1989-05-09 |
| 4427525 | Dual gas measuring solid electrolyte electrochemical cell apparatus | Chikara Hirayama | 1984-01-24 |
| 4391690 | Apparatus for monitoring SO.sub.2 concentrations | William M. Hickam | 1983-07-05 |
| 4377460 | Solid electrolyte gas sensing apparatus | Chikara Hirayama | 1983-03-22 |
| 4231733 | Combined O.sub.2 /combustibles solid electrolyte gas monitoring device | William M. Hickam, John M. Zomp | 1980-11-04 |