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. Nl Industries (2 from 319 patents)
2 patents:
1. 4224312 - Hair compositions containing castor based quaternaries
2. 4220581 - Castor based quaternaries