Average Co-Inventor Count = 2.67
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. Nissan Motor Company Limited (2 from 13,402 patents)
2 patents:
1. 4221203 - Cross-flow type internal combustion engine with a small sized exhaust
2. 4060064 - Variable size venturi carburetor with an electronic air/fuel ratio