Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D359967 | Hand operated die press | Robert J. Eichenberg | 1995-07-04 |
| D341842 | Sheet cutting die press machine | Robert J. Eichenberg | 1993-11-30 |
| 5255587 | Sheet cutting die press | Robert J. Eichenberg | 1993-10-26 |