Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5559759 | Method of alerting marine mammals and other mammals underwater of the danger of approaching motor vessels | Edmund R. Gerstein, Joseph Blue | 1996-09-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5559759 | Method of alerting marine mammals and other mammals underwater of the danger of approaching motor vessels | Edmund R. Gerstein, Joseph Blue | 1996-09-24 |