Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655774 | Pig ramp, system and method | Danny Lee Dray, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell | 2020-05-19 |
| 10408377 | Pig ramp, system and method | Danny Lee Dray, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell | 2019-09-10 |
| 10197206 | Pig ramp, system and method | Danny Lee Dray, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell | 2019-02-05 |
| 10094508 | Pig ramp, system and method | Danny Lee Dray, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell | 2018-10-09 |
| 10012340 | Pig ramp, system and method | Danny Lee Dray, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell | 2018-07-03 |
| 10001240 | Pig ramp, system and method | Danny Lee Dray, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell | 2018-06-19 |