Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9528634 | Agricultural tubing extractor and related methods | Lawrence A. Ephan, Jr., Craig A. Spielman, Daniel E. Larson | 2016-12-27 |
| 7743591 | Research plot harvester for continuous plot to plot grain evaluation | Dan Larson, Mike J Argetsinger, John M Gass, Terry Henning, Brian W Meier +1 more | 2010-06-29 |
| 7681383 | Dual research plot harvester with unconventional grain flow | Mike J Argetsinger, John M Gass, Terry Henning, Dan Larson, Brian W Meier +1 more | 2010-03-23 |
| 5518454 | Research plot harvester with unconventional grain flow | Clarence H. Twilley, Scott E. Alley, John M Gass, John Fisher | 1996-05-21 |