Average Co-Inventor Count = 1.20
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. Federal-mogul Corporation (2 from 386 patents)
2. Simpson Industries, Inc. (1 from 18 patents)
3 patents:
1. 6079942 - Pump seal flushing ring
2. 4808148 - Temperature compensated self-tensioning idler pulley
3. 4634407 - Self-tensioning belt tightener