Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566484 | Internally illuminated sign | — | 1996-10-22 |
| D374835 | Emergency light | — | 1996-10-22 |
| 4216915 | Electrostatic powder spray gun | Alex Hengartner, Kurt Baumann | 1980-08-12 |