Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11219156 | Distributed pump system | Richard A. Humpal, Patrick J. Fisher | 2022-01-11 |
| 11051505 | Multi-fluid spray system and method for agricultural product application | Richard A. Humpal, Dennis J. Sullivan, Larry P. Ferguson | 2021-07-06 |
| 10842143 | Multi-fluid spray system and method for agricultural product application | Richard A. Humpal, Dennis J. Sullivan, Larry P. Ferguson | 2020-11-24 |