Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9504543 | Electric toothbrush with continuous rotating brush and vibrating section | — | 2016-11-29 |
| 5332235 | Mechanical face seals | Christopher J. Fone, James Gilbert | 1994-07-26 |
| 5305782 | Pneumatic control valve system | Graham V. Kipling | 1994-04-26 |
| 5176226 | Tailgate closing mechanism for tailgate hoist | John C. Martin | 1993-01-05 |
| 4993470 | Latch for powered door assembly | Jan Ballyns, John C. Martin | 1991-02-19 |
| 4949772 | Roll-up doors | Jan Ballyns, John C. Martin | 1990-08-21 |
| 4940380 | Load elevator platform for truck or the like | Jan Ballyns, John C. Martin | 1990-07-10 |
| 4939433 | Control system for roll-up doors | Jan Ballyns, John C. Martin | 1990-07-03 |
| 4865079 | High pressure hydraulic flow control valve | John C. Martin, Roy G. R. Furzer | 1989-09-12 |
| 4860813 | Doors for vans | Jan Ballyns, John C. Martin | 1989-08-29 |
| 4825909 | High pressure hydraulic flow control valve | John C. Martin, Roy G. R. Furzer | 1989-05-02 |
| 4825190 | Safety system for preventing the unauthorized use of powered liftgates | — | 1989-04-25 |
| 4540329 | Safety lock for tailgate lift | — | 1985-09-10 |
| 4526197 | Pneumatic valve | John C. Martin | 1985-07-02 |
| 4523898 | Hydraulic wobble pumps | John C. Martin | 1985-06-18 |
| 4516594 | Multi-part valve with a valve seat skeleton and cast valve body | John C. Martin | 1985-05-14 |
| 4490871 | Reciprocating rotary brush | — | 1985-01-01 |
| 4474198 | Flatware pre-cleaner | Iriving E. Greenfield, Jr. | 1984-10-02 |
| 4380300 | Air cargo container | Elton E. Mountz | 1983-04-19 |
| 4260317 | Telescopic body with ejection bulkhead | John C. Martin | 1981-04-07 |