Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4965832 | Active noise control | John W. Edwards | 1990-10-23 |
| 4876722 | Active noise control | John W. Edwards, Adrian W. James | 1989-10-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4965832 | Active noise control | John W. Edwards | 1990-10-23 |
| 4876722 | Active noise control | John W. Edwards, Adrian W. James | 1989-10-24 |