Average Co-Inventor Count = 5.14
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. Degussa Aktiengesellschaft (3 from 1,678 patents)
2. Evonik Carbon Black Gmbh (12 patents)
3 patents:
1. 7300964 - Carbon black
2. 6960250 - Carbonaceous material
3. 6758891 - Carbon-containing material