Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662501 | Emergency release mechanism for electrical bus door | Earl Rinker | 2003-12-16 |
| 4815726 | Quick release document transport apparatus | Ralf M. Brooks, Dennis Sonnenburg | 1989-03-28 |
| 4712113 | Thermal transfer ribbon mechanism and recording method | Ralf M. Brooks, Brian P. Connell, Dennis Sonnenburg | 1987-12-08 |
| 4709448 | Hock cutting mechanism | Bernie McGuire, Robert S. Innes | 1987-12-01 |
| 4660256 | Poultry transfer machine | Robert S. Innes | 1987-04-28 |