Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976752 | Arrangement for generating an electric corona discharge in air | Vilmos Torok | 1990-12-11 |
| 4955991 | Arrangement for generating an electric corona discharge in air | Vilmos Torok | 1990-09-11 |