Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D348337 | Paint brush cleaning machine | Lawrence B. O'Brien | 1994-06-28 |
| 5213121 | Paint brush washing machine | Lawrence B. O'Brien | 1993-05-25 |
| 4717276 | End cap structure for attaching paint sleeve to roller | Lawrence B. O'Brien, Edmund L. Abner, William L. Buehler, Walter A. Messick | 1988-01-05 |
| 4661045 | Leakage detection in remote supply painting system | Lowell G. Atkinson | 1987-04-28 |
| 4599009 | Paint roller sealing system | — | 1986-07-08 |
| 4576553 | Painting applicator with remote supply | Lowell G. Atkinson | 1986-03-18 |