Average Co-Inventor Count = 2.67
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. Degussa - Huls Ag (2 from 148 patents)
2 patents:
1. 6224660 - Ink mixture
2. 6207721 - Aluminum silicate suspension