Average Co-Inventor Count = 4.80
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 (1 from 30,028 patents)
2. Mine Safety Appliances Company (1 from 242 patents)
3. Siemens Gamesa Renewable Energy A/s (547 patents)
2 patents:
1. 9973125 - Operating a wind turbine being connected to a utility grid solely via an umbilical AC cable with a network bridge controller performing a power and a voltage control
2. 5577496 - Respiratory protective apparatus