Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6389880 | Zero shift compensation oxygen sensor | — | 2002-05-21 |
| 6177001 | Internally calibrated oxygen sensor, method and system | — | 2001-01-23 |
| 5288149 | Gas calorimeter and wobbe index meter | — | 1994-02-22 |
| 5269170 | Measuring system and process using zero shift compensation circuit | — | 1993-12-14 |
| 5012669 | Oxygen sensing method and apparatus | — | 1991-05-07 |
| 4893495 | Oxygen sensing method and apparatus | — | 1990-01-16 |
| 4647777 | Selective gas detector | — | 1987-03-03 |