Average Co-Inventor Count = 5.00
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 - Huls Ag (1 from 145 patents)
1 patent:
1. 6001318 - Process for lowering nitrogen oxide levels in combustion engine exhaust