Average Co-Inventor Count = 3.43
ph-index = 2
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. Rohm Gmbh (2 from 362 patents)
2 patents:
1. 4847309 - Method for making foundry sand containing a resin binder
2. 4585809 - Resin binders for foundry molding sands