Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5880793 | Glare protection device | Stefan Gunz, Rene Werthmueller | 1999-03-09 |
| 5444232 | Antiglare device to protect eyes during welding and immediately thereafter for a time based on the intensity and duration of the welding light | Stefan Gunz, Manfred Castelberg | 1995-08-22 |
| 5315099 | Glare shielding device and process for operating same | Stefan Gunz | 1994-05-24 |