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. Stora Kopparbergs Bergslags Ab (2 from 18 patents)
2 patents:
1. 4374663 - Method and apparatus for reducing an iron oxide material in a fluidized
2. 4359212 - Apparatus for reducing finely divided iron oxide material