Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688288 | Pulling over and toe lasting machine | Gerhard Giebel, Rudi Fichtner | 1987-08-25 |
| 4491263 | Heel attaching machine | — | 1985-01-01 |
| 4442563 | Shoe lasting machine | Gerhard Lauckhardt, Rudi Fichtner | 1984-04-17 |
| 4319373 | Shoe lasting machine | Gerhard Lauckhardt, Rudi Fichtner | 1982-03-16 |