Average Co-Inventor Count = 2.40
ph-index = 1
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. Federal-Mogul Corporation (1 from 386 patents)
2. Tenneco Gmbh (1 from 190 patents)
2 patents:
1. 10359003 - Cylinder head gasket with compression limiter and full bead loading
2. 9243584 - Cylinder head gasket with compression control features