Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5107991 | Method and apparatus for friction sorting of particulate materials | Carl W. Nichols, Michael J. Lorang, Jerry W. Rayfield | 1992-04-28 |
| 5080235 | Small particle separator | Carl W. Nichols, Michael J. Lorang, Jerry W. Rayfield, Marvin F. Hansen, Richard D. Johnson | 1992-01-14 |
| 5069346 | Method and apparatus for friction sorting of particulate materials | Carl W. Nicols, Michael J. Lorang, Jerry W. Rayfield | 1991-12-03 |