Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640120 | Polarization current controlled electronic circuit such as an adjustable resistance, a negative resistance or a filter or similar | Francis Wiest | 1997-06-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640120 | Polarization current controlled electronic circuit such as an adjustable resistance, a negative resistance or a filter or similar | Francis Wiest | 1997-06-17 |