Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471139 | Rail arrangement | Michael Bruder, Michail Rabkin, Karl-Heinz Krause, Edgar Bohm, Gerhard Merkmann +1 more | 2002-10-29 |
| 5735457 | Rubber mixture for an elastic intermediate layer for a rail support | Edgar Bohm, Manfred Klerk, Karl-Heinz Krause, Gerhard Merkmann, Rolf Steinmuller | 1998-04-07 |