Average Co-Inventor Count = 5.00
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. Koppers Delaware, Inc. (2 from 17 patents)
2 patents:
1. 7465387 - Coal tar and hydrocarbon mixture pitch and the preparation and use thereof
2. 7066997 - Coal tar and hydrocarbon mixture pitch and the preparation and use thereof