Average Co-Inventor Count = 9.00
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. Tenneco Automotive Operating Company Inc. (5 from 406 patents)
5 patents:
1. 8714320 - Nested check high speed valve
2. 8668061 - Nested check high speed valve
3. 8590678 - Nested check high speed valve
4. 8511446 - Nested check high speed valve
5. 8297418 - Nested check high speed valve