Average Co-Inventor Count = 4.20
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. Bridgestone Corporation (1 from 5,119 patents)
2. Bridgestone Tire Company Limited (1 from 504 patents)
2 patents:
1. 4761925 - Anti-seismic rubber bearing
2. 4252171 - Withstand-voltage tire