Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634456 | Classification and/or grading | Martin Biffin | 1987-01-06 |
| 4584948 | Combustors | Martin Biffin, Timothy Charles Claypole | 1986-04-29 |
| 4585466 | Cyclone separators | Martin Biffin, Ieuan Owen | 1986-04-29 |
| 4432778 | Fluidic switched fluid cleaning | Michael J. Parkinson, Anthony W. Jury, Ieuan Owen | 1984-02-21 |
| 4249575 | Fluidic devices | Peter J. Roberts | 1981-02-10 |