Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897161 | Two-directionally folding chair | — | 1999-04-27 |
| 5242211 | Stackable swivel chair | Jan Grad, Sylvester Klus, Michael Hertig | 1993-09-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897161 | Two-directionally folding chair | — | 1999-04-27 |
| 5242211 | Stackable swivel chair | Jan Grad, Sylvester Klus, Michael Hertig | 1993-09-07 |