Average Co-Inventor Count = 4.00
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. Rohm and Haas Company (2 from 3,395 patents)
2 patents:
1. 5863999 - Viscosity index improving additives for phosphate ester-containing
2. 5817606 - Viscosity index improving additives for phosphate ester-containing