Average Co-Inventor Count = 1.67
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. Nicca Chemical Co., Ltd. (2 from 57 patents)
2 patents:
1. 7189880 - Process for producing 2,4'-dihydroxydiphenylsulfone
2. 6046363 - Method of making 4-hydroxy-4'-benzyloxydiphenyl sulfone