Average Co-Inventor Count = 4.00
ph-index = 3
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. Westvaco Corporation (5 from 790 patents)
5 patents:
1. 5166256 - Modified rosin esters and their use in printing inks
2. 5166257 - Modified rosin esters and their use in printing inks
3. 5166258 - Modified rosin esters and their use in printing inks
4. 5166262 - Modified rosin esters and their use in printing inks
5. 5164446 - Modified rosin esters and their use in printing inks