Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4918659 | Apparatus and method for adding a selected additive into a mixture | Dale E. Bragg, Mark A. Clark | 1990-04-17 |
| 4886367 | Apparatus for adding a selected additive into a mixture | Dale E. Bragg, Mark A. Clark | 1989-12-12 |