Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9453307 | Rail switch having a main track and a branch track | Johann Gsodam | 2016-09-27 |
| 8746630 | Switch with movable frog point | Thomas Klemen, Gernot Krenn | 2014-06-10 |
| 8033480 | Arrangement for fastening railroad rails to a sleeper | Hubertus Hohne, Hans-Ulrich Dietze, Josef Leitner, John Phillip Porrill, David Seeley | 2011-10-11 |
| 7874527 | Fastening rail in railway slide chair assembly | John Phillip Porrill, David Seeley, Josef Leitner, Hans-Ulrich Dietze, Hubertus Hohne | 2011-01-25 |
| 7648080 | Rail fixing device | Hubertus Hohne, Hans-Ulrich Dietze, Josef Leitner, John Phillip Porrill, David Seeley | 2010-01-19 |
| 5899417 | Device for securing stock rails in railway switches | Hannes Gsodam | 1999-05-04 |
| 5148980 | Device for securing in position guide rails | Dieter Fritz, Johannes Oswald | 1992-09-22 |