Average Co-Inventor Count = 3.00
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. 4422268 - Barrel-vault roofing element
2. 4371575 - Rigid, one-piece, biaxially stretched shaped body of synthetic resin and