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. American Can Company (1 from 456 patents)
2. Reed Lignin, Inc. (1 from 20 patents)
2 patents:
1. 4455257 - Cationic reaction product of kraft lignin with aldehyde and polyamine
2. 4320036 - Ligno-novolak resin molding compositions