Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10993387 | Sod harvesters | — | 2021-05-04 |
| 10932403 | Sod harvesters | — | 2021-03-02 |
| 10524429 | Sod harvesters | — | 2020-01-07 |
| 10299443 | Sod harvesters | — | 2019-05-28 |
| 10039221 | Sod harvester with flap control device | Timothy Boelter, Jake Bies | 2018-08-07 |
| 9688476 | Sod harvester | — | 2017-06-27 |
| 8888154 | Sod roll pickup mechanism | — | 2014-11-18 |
| 8118154 | Sod handler | Michael Tvetene, Donald Tvetene | 2012-02-21 |
| 7740083 | Sod harvesting apparatus | — | 2010-06-22 |
| 7641437 | Sod slab handler | Michael Tvetene, Donald Tvetene | 2010-01-05 |
| 6783318 | Sod stacker | Theodore Tvetene, Donald Tvetene, Michael Tvetene | 2004-08-31 |
| 6681864 | Sod harvester | Donald Tvetene, Michael Tvetene | 2004-01-27 |
| 6364027 | Sod harvester | Donald Tvetene, Michael Tvetene | 2002-04-02 |
| 6296063 | Sod harvester | Donald Tvetene, Michael Tvetene | 2001-10-02 |
| 6050367 | Bi-directional vehicle | Theodore Tvetene, Donald Tvetene, Michael Tvetene | 2000-04-18 |