Average Co-Inventor Count = 6.00
ph-index = 2
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. Basf Corporation (1 from 2,036 patents)
2. Engelhard Corporation (1 from 623 patents)
2 patents:
1. 7811962 - Manufacture of exhaust articles for internal combustion engines
2. 7276212 - Exhaust articles for internal combustion engines