Average Co-Inventor Count = 5.61
ph-index = 5
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 (5 from 2,697 patents)
5 patents:
1. D297538 - Riding lawn mower
2. 4731983 - Lawn mower
3. 4727768 - Transmission for agricultural tractor
4. 4721494 - Drive transmission structure for tractor
5. 4509614 - Working vehicle equipped with engine automatic stop device