Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5257698 | Cleaner for stock suspensions | Herbert Holik, Erich Linck, Wolfgang Siewert | 1993-11-02 |
| 5255447 | Heat protection hood | — | 1993-10-26 |
| 4781025 | Apparatus for the hydraulic transmission of mechanical power and for the simultaneous multiplication of the speed of rotation | — | 1988-11-01 |
| 4721154 | Method of, and apparatus for, the continuous casting of rapidly solidifying material | Rolf Lehmann, Hans Schlaepfer | 1988-01-26 |
| 4704879 | Treatment machine with rotatable treatment drum | Helmuth Lehmann, Leonhard Spiewok | 1987-11-10 |
| 4610617 | Heat insulating protective shields for two-roll calender with heated rolls | Rolf Lehmann | 1986-09-09 |
| 4605366 | Calender for pressure and thermal treatment of material webs | Rolf Lehmann | 1986-08-12 |
| 4456183 | Fiberizer for stock suspensions for fabricating paper | — | 1984-06-26 |
| 4422318 | Roller with a roller surface which is to be heated or cooled | Rolf Lehmann, Beat Schlatter | 1983-12-27 |
| 4404724 | Hydrostatic support element, especially for a controlled deflection roll | Johann Miesch | 1983-09-20 |
| 4325584 | Mounting for a rotor | Mario Peron | 1982-04-20 |
| 4310204 | Hydrostatic support apparatus | Heinz Annen | 1982-01-12 |
| 4282638 | Controlled deflection roll | Rolf Lehmann | 1981-08-11 |
| 4282639 | Heated controlled deflection roll | Rolf Lehmann | 1981-08-11 |
| 4209405 | Centrifuge | — | 1980-06-24 |