Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9650071 | Bi-directional towed snowplow and method of plowing | Leo P. Manion, Gerald Simpson, Amiya Mishra | 2017-05-16 |
| 9388544 | Finger snow plow with extension | Gerald Simpson, Leo P. Manion, Amiya Mishra | 2016-07-12 |
| 7975408 | Snow plow and method of plowing snow | Amiya Mishra, Gerald Simpson | 2011-07-12 |
| 7908775 | Two-stage snow plow | Amiya Mishra, Gerald Simpson | 2011-03-22 |
| 7730643 | Two-stage snow plow | Amiya Mishra, Gerald Simpson | 2010-06-08 |