Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D256393 | Transcutaneous electrical nerve stimulator pulse generator and power supply | Richard L. Walus, Ronald N. Kannas | 1980-08-12 |
| D256394 | Transcutaneous electrical nerve stimulator pulse generator and power supply | Richard L. Walus, Ronald N. Kannas | 1980-08-12 |