Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5596134 | Continuous oxygen content monitor | Tadeusz M. Drzewiecki, Stephen A. Freimanis | 1997-01-21 |
| 5540248 | Fluidic sound amplification system | Tadeusz M. Drzewiecki | 1996-07-30 |
| 5071258 | Thermocouple assembly | John Usher, Joseph E. Blaze | 1991-12-10 |
| 5069553 | Protective sheath for a continuous measurement thermocouple | — | 1991-12-03 |
| 4856338 | Technique for null balancing fluidic circuits | Francis M. Manion | 1989-08-15 |
| 4746534 | Method of making a thermocouple | David C. Greenspan, Richard Theodore Ellis, Tadeusz M. Drzewiecki, Taki Negas, Ernie Tokay +1 more | 1988-05-24 |
| 4721533 | Protective structure for an immersion pyrometer | David C. Greenspan, Ernie Tokay | 1988-01-26 |
| 4721534 | Immersion pyrometer | David C. Greenspan, Richard Theodore Ellis, Tadeusz M. Drzewiecki, Taki Negas, Ernie Tokay +1 more | 1988-01-26 |
| 4534383 | Fluidic set point pressure sensor | Thadeusz M. Drzewiecki | 1985-08-13 |