Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838373 | Suspension structure for a tracked vehicle | Robert J. Price, Andrew J. Tonsor, Ronald L. Satzler, Samuel B. Stevens | 1989-06-13 |
| 4836318 | Track roller frame assembly | Andrew J. Tonsor, David E. Nelson, Samuel B. Stevens | 1989-06-06 |
| 4834478 | Track roller frame assembly | Samuel B. Stevens, Andrew J. Tonsor | 1989-05-30 |
| 4781257 | Suspension structure for a tracked vehicle | Andrew J. Tonsor, David E. Nelson, Ronald L. Satzler | 1988-11-01 |
| 4575959 | Material directing device for an auger scraper | — | 1986-03-18 |
| D274333 | Track type log skidding machine | Thomas C. Meisel, Jr. | 1984-06-19 |
| 4197049 | Ejector assembly having a pivotal upper member | Robert N. Stedman | 1980-04-08 |