Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5824741 | Impact-resistant thermoplastic moulding compositions | Burkhard Kohler, Rolf-Volker Meyer | 1998-10-20 |
| 5747586 | High-impact molding compounds based on polyisobutylene-containing polycarbonate | Burkhard Kohler, Wolfgang Ebert, Richard Weider, Thomas Scholl, Rolf Dhein | 1998-05-05 |
| 5698622 | Stabilisation of ABS graft polymers using dithiodipropionic acid | Burkhard Kohler | 1997-12-16 |
| 5635560 | Mixtures of polycarbonate, phenolically hydroxyfunctional branched dimeric fatty acid polyesters and optionally graft polymer | Burkhard Kohler, Dieter Wittmann, Wolfgang Ebert, Horst Beicher, Klaus Horn | 1997-06-03 |
| 5599862 | Graft polymers with improved surface gloss | Burkhard Kohler, Karl-Erwin Piejko | 1997-02-04 |
| 5427623 | Cleaning of machines for the production and processing of plastics | Werner Schumann, Werner Brennig | 1995-06-27 |
| 5086863 | All-wheel steering system for motor vehicles | — | 1992-02-11 |
| 5072802 | Control mechanism for two hydraulic adjustment devices supplied via one, each, current branch by a high-pressure pump | — | 1991-12-17 |
| 5056311 | Hydrostatic steering device | — | 1991-10-15 |
| 5017422 | Cast films of ABS plastics | Werner Schumann | 1991-05-21 |
| 4895891 | Mat, elastic-thermoplastic moulding compounds | Werner Schumann, Wolfgang Liedtke, Klaus Richter | 1990-01-23 |
| 4791016 | Stretched polycarbonate films filled with carbon black | Bernhard Schulte, Werner Waldenrath, Hans Kaloff | 1988-12-13 |
| 4756330 | Flow divider valve | — | 1988-07-12 |
| 4599262 | Electrically conductive polycarbonate laminates and their preparation | Bernhard Schulte, Hans Kaloff, Hans-Leo Weber | 1986-07-08 |
| 4553389 | Hydrostatic auxiliary steering apparatus | Karl-Heinz Liebert, Rolf Fassbender | 1985-11-19 |
| 4553390 | Hydrostatic steering arrangement | Karl-Heinz Liebert, Rolf Fassbender | 1985-11-19 |
| 4495769 | Booster power steering | Karl-Heinz Liebert, Rolf Fassbender | 1985-01-29 |
| 4488401 | Hydraulic servo steering for vehicles | — | 1984-12-18 |
| 4466243 | Hydrostatic power steering system with curved valve return springs | Karl-Heinz Liebert, Rolf Fassbender | 1984-08-21 |
| 4395877 | Hydrostatic steering system for motor vehicles | Karl-Heinz Liebert | 1983-08-02 |
| 4371002 | Hydrostatic steering system | — | 1983-02-01 |
| 4359866 | Rotatable controller system | — | 1982-11-23 |
| 4355505 | Rotatable controller valve | Karl-Heinz Liebert | 1982-10-26 |
| 4354350 | Hydrostatic auxiliary power steering | Karl-Heinz Liebert | 1982-10-19 |
| 4344283 | Hydrostatic auxiliary power steering | Karl-Heinz Liebert, Christoph Deppenbrock | 1982-08-17 |