Average Co-Inventor Count = 5.29
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. Kubota Corporation (3 from 2,703 patents)
3 patents:
1. 4616872 - Earth moving vehicle
2. D273384 - Earth moving machine
3. 4415050 - Drive pump arrangement for working vehicle