Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054316 | Volumetric measuring apparatus | Keith F. E. Pratt | 1991-10-08 |
| 4645320 | Camera mount for motor vehicle | Ronald J. Willett, Philip E. Nimmo, IV | 1987-02-24 |
| 4552015 | Fuel consumption measuring system | David P. Emmett, Ronald J. Willett | 1985-11-12 |