Average Co-Inventor Count = 4.00
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. Engelhard Corporation (2 from 623 patents)
2 patents:
1. 7143578 - Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines
2. 6826906 - Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines