Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350266 | Pumping system for unstable fluids | Robert D. Hetherington | 1982-09-21 |
| 4281683 | Modular multiple-fluid component selection and delivery system | Robert D. Hetherington | 1981-08-04 |
| 4274512 | Roving brake | — | 1981-06-23 |
| D257384 | Modular multi-color paint selection and supply system manifold or the like | Robert D. Hetherington | 1980-10-14 |
| 4215721 | Modular multiple-fluid component selection and delivery system | Robert D. Hetherington | 1980-08-05 |
| 4193546 | High-viscosity volume balancing mixing head | Robert D. Hetherington | 1980-03-18 |