Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829838 | Method and apparatus for the measurement of the size of particles entrained in a gas | Jonathan Seville, Andrew H. J. Take | 1989-05-16 |
| 4815482 | Treatment of particulate materials | Roger W. Hedge, Robert Legros, Clive A. Millington | 1989-03-28 |