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Tagerwilen, Switzerland

Schwihag Gmbh

USPTO Granted Patents = 3

Forward Citations = 18

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10 inventors (with patents filed for the assignee):

Armin Heim (3 out of 8 patents)

Siegfried Keusch (1 out of 10 patents)

K Ohm (1 out of 1 patent)

4. K Spiegel (1 out of 1 patent)

5. Rudolf Kopl (1 out of 1 patent)

6. Jurgen Kruger (1 out of 1 patent)

7. Volker Klein (1 out of 1 patent)

8. Hans-Joachim Scholte (1 out of 1 patent)

9. Otto Morgenschweis (1 out of 1 patent)

10. Karl H Schwiede (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5628454 - Foot support modification for railroad rails (1997-05-13),

2. 5562267 - Cross-ties for railroad track systems (1996-10-08),

3. 4770343 - Resilient rail fixing device for track installations (1988-09-13),

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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#4 in Tagerwilen

#2,332 in Switzerland

Tagerwilen, Switzerland

Schwihag Gmbh

Forward Citations = 18

10 inventors:

Armin Heim (3 out of 8 patents)

Siegfried Keusch (1 out of 10 patents)

K Ohm (1 out of 1 patent)

4. K Spiegel (1 out of 1 patent)

5. Rudolf Kopl (1 out of 1 patent)

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