Average Co-Inventor Count = 3.79
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. Siemens Aktiengesellschaft (2 from 30,028 patents)
2. Siemens Mobility Gmbh (1 from 435 patents)
3 patents:
1. 10933897 - Method and arrangement for securing a railroad crossing
2. 9493176 - Method for operating a railway safety system, and railway safety system
3. 8540192 - Method and apparatus for operation of railroad protection installation