Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5955041 | Natural circulation reactor and use for producing linear and cyclic acetals | Bernhard Hierholzer, Hubert Wloch, Karl-Friedrich Muck | 1999-09-21 |
| 5766424 | Process for removing trioxane from an aqueous mixture | Bernhard Hierholzer, Karl-Friedrich Muck, Monika Reiss, Peter Richter, Hans-Dietmar Schnabel +1 more | 1998-06-16 |
| 5523419 | Process for separating trioxane from an aqueous mixture | — | 1996-06-04 |
| 4557882 | Method and apparatus for equalizing the density distribution of pressed wood panels | — | 1985-12-10 |
| 4524810 | Method and apparatus for controlling the density distribution of bulk material | — | 1985-06-25 |
| 4504207 | Pressing apparatus for making particleboard | — | 1985-03-12 |
| 4455439 | Process for the preparation of ketene | Jorg Bartels, Heinrich Lenzmann, Gunter Jacobsen, Heinz Wendt, Manfred Stoltenberg | 1984-06-19 |
| 4259039 | Adjustable volume vane-type pump | — | 1981-03-31 |