Average Co-Inventor Count = 1.64
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 (3 from 30,040 patents)
3 patents:
1. D805603 - Valve positioner for the distribution of fluid and gas
2. 4721261 - Winding appliance for toroidal core coils
3. 4305435 - Winding and cutting device