Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5409170 | Impaction classifier | Donald E. Burwell, Roger C. Emerick, James R. O'Coin, David L. Steimke | 1995-04-25 |
| 5152457 | Ultrasonic mist generator with multiple piezoelectric crystals | Donald E. Burwell | 1992-10-06 |
| 5145113 | Ultrasonic generation of a submicron aerosol mist | Donald E. Burwell, Glen R. Coates, James R. O'Coin | 1992-09-08 |