Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5984143 | Portable multi-compartment chemical storage and mixing tank | Billy R. Pettis, Richard E. Dombkowski, Brad S. Filson | 1999-11-16 |
| D393522 | Portable multi-component chemical storage and mixing tank | Billy R. Pettis, Richard E. Dombkowski, Brad S. Filson | 1998-04-14 |
| 4191038 | Key holder | — | 1980-03-04 |