Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11413588 | Mixing apparatus and system | Douglas G. Pullman | 2022-08-16 |
| 10507443 | Mixing apparatus and system | Douglas G. Pullman | 2019-12-17 |
| 8684095 | Geothermal pipe setting tool | Douglas G. Pullman | 2014-04-01 |
| 8168067 | Process for incorporating a dry treatment product into a liquid waste | Doug Pullman | 2012-05-01 |
| 7901571 | Apparatus for the incorporation of a dry treatment product into a liquid waste | Doug Pullman | 2011-03-08 |