Average Co-Inventor Count = 3.27
ph-index = 2
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 Gmbh (4 from 20 patents)
2. Vae Eisenbahnsysteme Gmbh (4 from 14 patents)
3. Pandrol Limited (3 from 77 patents)
4. Bwg Gmbh & Co. Kg (3 from 8 patents)
5. Vae Aktiengesellschaft (1 from 18 patents)
6. Voestalpine Vae Gmbh (1 from 10 patents)
7. Voestalpine Weichensysteme Gmbh (1 from 2 patents)
8. Voestalpine Bwg Gmbh & Co. Kg (4 patents)
9. Voestalpine Signaling Sainerholz Gmbh (0 patent)
6 patents:
1. 9453307 - Rail switch having a main track and a branch track
2. 8746630 - Switch with movable frog point
3. 8033480 - Arrangement for fastening railroad rails to a sleeper
4. 7874527 - Fastening rail in railway slide chair assembly
5. 7648080 - Rail fixing device
6. 5899417 - Device for securing stock rails in railway switches