Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D317771 | Sunglasses with lens shading visor | — | 1991-06-25 |
| D313236 | Sunglasses | — | 1990-12-25 |
| 4976530 | Sunglasses with visor | William J. Wichman | 1990-12-11 |
| D269377 | Massaging appliance | Keith M. Mullins | 1983-06-14 |
| D269200 | Sprinkler base | Craig R. Tisserat, Paul G. Mayr, Enric C. Mendoza | 1983-05-31 |
| D267582 | Hand-held showerhead | Spencer L. Mackay, Allan B. Johnson, David W. Smith | 1983-01-11 |
| D267581 | Showerhead | Spencer L. Mackay, Allan B. Johnson, David W. Smith | 1983-01-11 |
| D267422 | Showerhead steamer attachment | Spencer L. Mackay, Allan B. Johnson | 1982-12-28 |
| 4234526 | Evaporative cooler | Spencer L. Mackay | 1980-11-18 |
| D256027 | Combination counter and tabulator for controlling food intake | Spencer L. Mackay, Allan B. Johnson | 1980-07-22 |