Average Co-Inventor Count = 4.00
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. Bridgestone Corporation (2 from 5,125 patents)
2 patents:
1. 5433257 - Heavy duty pneumatic radial tires with specified carcass turnup
2. 5056575 - Heavy duty pneumatic radial tires with three piece rubber stocks