Average Co-Inventor Count = 3.00
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. Sanshin Kogyo Kabushiki Kaisha (3 from 1,061 patents)
3 patents:
1. 6557533 - Fuel vapor emission system
2. 6502559 - Fuel vapor emission system
3. 6408835 - Fuel vapor emission system