Average Co-Inventor Count = 5.14
ph-index = 3
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 Gas Chemical Company, Inc. (3 from 2,245 patents)
3 patents:
1. 5393386 - Method for preparing aqueous quaternary ammonium hydroxide solution
2. 5338462 - Active carbon materials, process for the preparation thereof and the use
3. 5242879 - Active carbon materials, process for the preparation thereof and the use