Average Co-Inventor Count = 2.40
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. Kelsey-hayes Company (2 from 577 patents)
2 patents:
1. 4200173 - Sliding caliper disc brake
2. 4194597 - Disc brake anti-rattle means