Average Co-Inventor Count = 3.43
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. Westinghouse Electric Corporation (1 from 8,033 patents)
2. Aeg Westinghouse Transportation Systems (1 from 24 patents)
2 patents:
1. 5057760 - Torque determination for control of an induction motor apparatus
2. 4516059 - Motor control chopper apparatus phase angle limiting