Average Co-Inventor Count = 1.52
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Vae Aktiengesellschaft (3 from 18 patents)
2. Voest-alpine Maschinenbau Gesellschaft M.b.h. (3 from 12 patents)
3. Voest-alpine Aktiengesellschaft (1 from 333 patents)
4. Voest-alpine Eisenbahnsysteme Gesellschaft M.b.h. (1 from 4 patents)
5. Voest-alpine Eisenbahnsystems Aktiengesellschaft (1 from 1 patent)
6. Voest-alpine Eisenbahnsysteme Aktiesengesselschaft (1 from 1 patent)
7. Vae Eisenbahnststeme Aktiengesellschaft (1 from 1 patent)
8. Voest-alpine Eisenbahnsysteme Aktiengesellschaft (1 from 1 patent)
12 patents:
1. 5687935 - Device for operating switches
2. 5650576 - Device for measuring switching force
3. 5566912 - Device for locking of movable switch parts
4. 5499786 - Device for facilitating the re-positioning of moveable rails or rail
5. 5462245 - Apparatus for locking moveable switch parts
6. 5374016 - Device for catching wheel deviations for track switches or crossing
7. 5356224 - Device for fastening slide inserts
8. 5253830 - Method for monitoring the condition of rail switch points
9. 4982919 - Reversing device for movable parts of a railway switch
10. 4927102 - Reversing device for movable parts within the deflection area of a
11. 4917339 - Reversing device for swivelable rails or movable frogs within the
12. 4860978 - Control mechanism for railway switches