Average Co-Inventor Count = 7.00
ph-index = 1
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. Hitachi, Ltd. (1 from 42,496 patents)
2. Mitsubishi Petrochemical Company Limited (1 from 546 patents)
3. Babcock-hitachi K.k. (1 from 26 patents)
1 patent:
1. 3976745 - Process for reducing nitrogen oxides to nitrogen