Average Co-Inventor Count = 2.40
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 Flakt Oy (2 from 4 patents)
2 patents:
1. 6340288 - High-pressure fan
2. 6264430 - Evaporating fan and its blade wheel