Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5930047 | Anti-glare device | Donata Gunz-Castelberg, Manfred Castelberg | 1999-07-27 |
| 5880793 | Glare protection device | Rene Werthmueller, Livio Ghisleni | 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 | Livio Ghisleni, Manfred Castelberg | 1995-08-22 |
| 5315099 | Glare shielding device and process for operating same | Livio Ghisleni | 1994-05-24 |