Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10759505 | Crayfish/crawfish harvesting method and apparatus | — | 2020-09-01 |
| 10464383 | Amphibious transport system | John Stewart Coast | 2019-11-05 |
| 10293648 | Amphibious marsh craft | — | 2019-05-21 |
| 10174559 | Apparatus for selective placement of auger or rod type anchors | John Stewart Coast | 2019-01-08 |
| 9931899 | Amphibious marsh craft | — | 2018-04-03 |
| 9630465 | Amphibious marsh craft | — | 2017-04-25 |
| 6305882 | Apparatus for placing auger type anchors | Waino J. Kangas | 2001-10-23 |
| 6234260 | Mobile drilling apparatus | Waino J. Kangas | 2001-05-22 |
| 5899164 | Tracked, amphibious marsh vehicle with improved track and drive arrangement | — | 1999-05-04 |
| 5811741 | Apparatus for placing geophones beneath the surface of the earth | Waino J. Kangas | 1998-09-22 |
| 4961395 | Amphibious vehicle with improved track securement and guide means | — | 1990-10-09 |
| 4467501 | Apparatus for centrifugally extracting crabmeat from crabs | Alfred R. Guglielmo | 1984-08-28 |
| 4433634 | Tracked, amphibious vehicle with track securement and guide means | — | 1984-02-28 |
| 4245829 | Bag folding machine | — | 1981-01-20 |
| 4183515 | Bag folding machine | — | 1980-01-15 |