Average Co-Inventor Count = 2.67
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. Abb Industry Oy (1 from 30 patents)
2. Abb Stromberg Drives Oy (1 from 10 patents)
2 patents:
1. 5940286 - Method for controlling the power to be transferred via a mains inverter
2. 5521483 - Method of determining a residual flux of an inverter-supplied squirrel