Average Co-Inventor Count = 4.00
ph-index = 3
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. Yamaha Hatsudoki Kabushiki Kaisha (3 from 4,237 patents)
3 patents:
1. 4402351 - Oil supply means for tanks containing blended fuel and oil
2. 4262710 - Oil supply means for tanks containing blended fuel and oil
3. 4191866 - Three-function switch for a motorcycle