Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817305 | Device for transplanting trees or shrubs | — | 2004-11-16 |
| 6382113 | Device for transplanting trees or bushes | — | 2002-05-07 |
| 5229097 | Process for the production of chlorosilicates | Alfred Roeder, Rudiger Oberste-Padtberg, Dietrich Gruschka | 1993-07-20 |
| 4627948 | Method of manufacturing a sintered dolomite in a shaft kiln | Karl H. Zepter, Alfred Roeder, Max Chmiel | 1986-12-09 |
| 4436252 | Tension shaft for winding frames | Wolfgang Burkle | 1984-03-13 |