Average Co-Inventor Count = 1.50
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 30,045 patents)
2 patents:
1. 5808844 - Current differential protection arrangement
2. 5790357 - Differential current protection for a transformer