Average Co-Inventor Count = 3.60
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 Chemical Company, Ltd. (3 from 1,641 patents)
3 patents:
1. 4507460 - Epoxy resin composition
2. 4491667 - Hexahydrophthalides
3. 4133965 - Process for producing tricyclo(5,2,1,0.sup.2,6)-3-decene-8 (or 9)-ol