Average Co-Inventor Count = 3.11
ph-index = 1
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. Kubota Corporation (2 from 2,667 patents)
2 patents:
1. 5033594 - Change-speed construction for propelling system of work vehicle
2. 4719974 - Walking operator type cultivator with automatic control stopper