Average Co-Inventor Count = 4.00
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. Kubota Corporation (2 from 2,697 patents)
2 patents:
1. 4245518 - Device for tightening an endless element trained over driving members
2. 4102537 - Seated-operator type tractor