Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4581992 | Screw press for mechanically separating liquids from mixtures of liquids and solids | — | 1986-04-15 |
| 4563243 | Apparatus and a method for producing wood pulp in a hollow cylinder containing a rotatable screw | Gerhard Syrbius | 1986-01-07 |
| 4530761 | Extrusion devices | Rainer Klaus, Gerhard Syrbius, Hans-Joachim Schaeffer | 1985-07-23 |
| 4509419 | Worm press for mechanically separating liquid/solid mixtures | Hans-Joachim Schaeffer, Gerhard Syrbius | 1985-04-09 |
| 4503764 | Press installation | Gerhard Syrbius | 1985-03-12 |
| 4475452 | Bark processing machine | Gerhard Syrbius | 1984-10-09 |
| 4457227 | Extraction device | — | 1984-07-03 |
| 4429628 | Extraction device | Gerhard Syrbius | 1984-02-07 |
| 4404101 | Extraction device for removing liquid from a liquid-solid mixture | Hans-Joachim Schaeffer, Gerhard Syrbius | 1983-09-13 |
| 4400218 | Apparatus for the continuous manufacture of glucose containing products | Gerhard Syrbius | 1983-08-23 |
| 4345988 | Method for sealing the drive-side portion of a preparation and hydrogenation chamber for hydrogenating coal with hydrogen to form hydrocarbons | — | 1982-08-24 |
| 4344836 | Method for converting coal to hydrocarbons by hydrogenation | — | 1982-08-17 |
| 4344835 | Method for monitoring and controlling hydrogenation pressure in plant for the hydrogenation of coal with hydrogen to form hydrocarbons | — | 1982-08-17 |
| 4328664 | Apparatus for the SZ-twisting of stranding elements of electric or optical cables and lines | Dieter Vogelsberg | 1982-05-11 |
| 4316873 | Apparatus for converting coal to hydrocarbons by hydrogenation | — | 1982-02-23 |
| 4288405 | Coal hydrogenation apparatus having means for monitoring and controlling hydrogenation pressure | — | 1981-09-08 |
| 4287157 | Coal hydrogenating apparatus having means for sealing the rotary drive thereof | — | 1981-09-01 |