Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5505846 | Plate shifter for filter press | Daniel DeHaan, Joel D. DeHaan, Nelson H. Tansey | 1996-04-09 |
| 5370795 | Plate shifter for filter press | Daniel DeHaan, Joel D. DeHaan, Nelson H. Tansey | 1994-12-06 |
| 4955497 | Litter container | Joseph Winden | 1990-09-11 |
| 4437396 | Air heated sandwich bin | Robert F. Plattner, Raymond J. Arend | 1984-03-20 |
| 4250955 | Self-service replenishable food cabinet | Robert F. Plattner, Raymond J. Arend | 1981-02-17 |
| 4208972 | Self-serving multi-tiered counter display stand | Raymond J. Arend | 1980-06-24 |