Average Co-Inventor Count = 3.00
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. J.s. Staedtler Gmbh & Co. (1 from 49 patents)
1 patent:
1. 6884287 - Ink base for pigmented inks, inks manufactured therefrom and their use