Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9624050 | System, apparatus and method for preparing materials transported in open top conveyance | Gregg Simmons, D. David Hefner, Daniel Raymond Deah | 2017-04-18 |
| 9382080 | System, apparatus and method for preparing materials transported in open top conveyance | Gregg Simmons, D. David Hefner, Daniel Raymond Deah | 2016-07-05 |
| 9347603 | Counterweight hoisting apparatus | — | 2016-05-24 |