Average Co-Inventor Count = 5.00
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 5,119 patents)
2 patents:
1. 4887950 - Waterproof nut
2. 4788022 - Method of manufacturing waterproof nuts