Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7425112 | Tamper resistant screw | — | 2008-09-16 |
| 6935824 | Tamper resistant screw | — | 2005-08-30 |
| D383166 | Business card holder | — | 1997-09-02 |
| 4250805 | High-speed hydraulic press | — | 1981-02-17 |
| 4204836 | Cyclone furnace for intensive treatment or combustion of dispergated mineral raw materials | Rudolf Zamojdo, Andrzej Parda, Wieslaw Kurdowski, Stefan Jankowski | 1980-05-27 |