Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224243 | Cleaning line with false air infeed valve for regulating air flow therein | Walter Schlepfer, Jurg Faas, Rene Waeber, Robert Demuth | 1993-07-06 |
| 4985966 | Apparatus for cleaning a card | Heinz Nitschke | 1991-01-22 |
| 4945609 | Revolving flat arrangement for a carding machine | Heinz Nitschke | 1990-08-07 |
| 4717251 | Elevation measurement in high order surveying | Leon W. Wells, William E. Mimmack | 1988-01-05 |
| 4713890 | Mislevel sensing device | Leon W. Wells | 1987-12-22 |