For the Inventor, By the Inventor

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Zeltweg, Austria

Voestalpine Weichensysteme Gmbh

USPTO Granted Patents = 2

EPO Patents = 5

Forward Citations = 1

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3 inventors (with patents filed for the assignee):

Alfred Lang (1 out of 5 patents)

Johann Gsodam (1 out of 1 patent)

Heinz Ossberger (1 out of 6 patents)

4. Harald Kopilovitsch (2 patents)

5. Josef Leitner (5 patents)

6. Eduard Guggenberger (1 patent)

7. Johannes Blumauer (2 patents)

8. Markus PÖSENDORFER (0 patent)

9. Wolfgang Hölzl (0 patent)

10. Erik Stocker (0 patent)

11. Mario Hosner (0 patent)

2 patents: Sort by Forward Citations

1. 9487920 - Double frog for track crossings (2016-11-08),

2. 9453307 - Rail switch having a main track and a branch track (2016-09-27),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#4 in Zeltweg

#952 in Austria

Zeltweg, Austria

Voestalpine Weichensysteme Gmbh

Forward Citations = 1

3 inventors:

Alfred Lang (1 out of 5 patents)

Johann Gsodam (1 out of 1 patent)

Heinz Ossberger (1 out of 6 patents)

4. Harald Kopilovitsch (2 patents)

5. Josef Leitner (5 patents)

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