Average Co-Inventor Count = 3.00
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. Kureha Kagaku Kogyo Kabushiki Kaisha (2 from 776 patents)
2 patents:
1. 4337231 - Removal of sulfur dioxide from exhaust gas
2. 4269806 - Scrubber for removal of sulfur dioxide from exhaust gas