Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6254730 | Impact angle changing shower | — | 2001-07-03 |
| 6022451 | Apparatus for removing contaminants from a rotating cylindrical roll | — | 2000-02-08 |
| 5595632 | Shower for paper making machine | — | 1997-01-21 |
| 4797203 | Reverse hydrocyclone cleaner for removing light contaminants from pulp slurry | — | 1989-01-10 |
| 4650584 | Seal arrangement for processing apparatus | — | 1987-03-17 |
| 4640780 | Unplugging of heavy fraction outlet hydrocyclone | — | 1987-02-03 |
| 4276059 | Deaerator for pulp stock | — | 1981-06-30 |
| 4233160 | Hydrocyclone separator arrangement | Johannes J. Richters, James E. St. John | 1980-11-11 |