Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6074193 | Apparatus for fabricating chipboards or fiber boards of cellulose material | Josef Kratky, Werner Pankoke | 2000-06-13 |
| 5458776 | Sand dewatering centriguse | Mark Preisser | 1995-10-17 |
| 5441475 | Centrifugal separator with axially separable bowl elements | Mark Preisser | 1995-08-15 |