Average Co-Inventor Count = 3.60
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. 4617787 - Combine harvester machine
2. 4610127 - Combine harvester
3. 4474188 - Combine