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. Kubota Corporation (2 from 2,681 patents)
2 patents:
1. 4887680 - Device for connecting work machine to tractor
2. 4245705 - Apparatus for taking off vibratory power for tractor