Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11920475 | Motion conversion assembly for pump and pump including same | — | 2024-03-05 |
| 11378165 | Motion conversion apparatus | — | 2022-07-05 |
| 11353094 | Multiple-rodrack assembly for motion conversion technology | — | 2022-06-07 |
| 8327819 | Constant velocity engine/technology | — | 2012-12-11 |
| 6598549 | Boat lift | — | 2003-07-29 |
| 6558209 | Boat auxiliary drive mechanism | — | 2003-05-06 |
| 6027303 | Non-counterweighted lift truck and method of operation | — | 2000-02-22 |
| 4739597 | Easily disassemblable enclosure and method for assembling same | David L. Arp | 1988-04-26 |
| 4720004 | Coin-operated display rack having rotatable coin-receiving mechanism which activates a movable coin diverter | — | 1988-01-19 |
| 4708409 | Display container for publications | — | 1987-11-24 |
| 4707038 | Display rack | — | 1987-11-17 |
| 4582190 | Self-contained module for controlling access to a display machine | — | 1986-04-15 |
| 4574934 | Newspaper display machine | — | 1986-03-11 |
| 4544081 | Newspaper display machine | — | 1985-10-01 |
| 4506776 | Newspaper display machine | — | 1985-03-26 |
| 4449643 | Knock-down vending rack | — | 1984-05-22 |
| 4386691 | Electromechanical coin-operated latch mechanism | — | 1983-06-07 |
| 4371072 | Coin-operated latch mechanism | — | 1983-02-01 |