Average Co-Inventor Count = 3.43
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. Tenneco Automotive Operating Company Inc. (2 from 406 patents)
2 patents:
1. 10358010 - Interlinked active suspension
2. 8627933 - Two stage valve and hydraulic damped valve