Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484674 | Free-piston internal combustion engine | — | 2002-11-26 |
| 6406271 | Swashplate type axial-piston pump | — | 2002-06-18 |
| 6293231 | Free-piston internal combustion engine | — | 2001-09-25 |
| D294358 | Radial piston hydraulic pump | — | 1988-02-23 |
| D294382 | Combined portable hydraulic pump and integral carrying case | — | 1988-02-23 |
| 4722263 | Portable hydraulic pump | — | 1988-02-02 |
| 4615257 | Swashplate type axial-piston pump | — | 1986-10-07 |
| 4546632 | Portable conduit bending apparatus | Jan M. Van Den Kieboom | 1985-10-15 |
| 4519752 | Control system for a variable displacement pump | — | 1985-05-28 |