Average Co-Inventor Count = 3.43
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. Mitsubishi Kinzoku Kabushiki Kaisha (1 from 197 patents)
2. Nippon Chemical Industrial Co., Ltd. (1 from 163 patents)
2 patents:
1. 4001372 - Removing oxides of nitrogen from gaseous mixtures with alkali manganate
2. 3986941 - Process for the production of alkali permanganate