Average Co-Inventor Count = 4.35
ph-index = 4
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. (4 from 406 patents)
2. Middleville Tool and Die Company (1 from 10 patents)
5 patents:
1. 11639676 - Vehicle exhaust system
2. 10253664 - Passive exhaust valve assembly with overlapping slip joint and method of forming and installation
3. 9689301 - Tailor to fit muffler
4. 9121320 - Tailor to fit muffler
5. 7897117 - Catalytic converter with mounting device for a hot exhaust gas oxygen sensor