Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146505 | Method for actively attenuating engine generated noise | Donald Pfaff, Nick S. Kapsokavathis | 1992-09-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146505 | Method for actively attenuating engine generated noise | Donald Pfaff, Nick S. Kapsokavathis | 1992-09-08 |