Average Co-Inventor Count = 2.00
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. Degussa Aktiengesellschaft (1 from 1,678 patents)
2. Kg Deutsche Gasrusswerke Gmbh & Co. (1 from 2 patents)
1 patent:
1. 4904454 - Reactor for producing furnace carbon black