Average Co-Inventor Count = 4.40
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 (7 from 2,699 patents)
7 patents:
1. 4731983 - Lawn mower
2. 4721494 - Drive transmission structure for tractor
3. 4674287 - Running apparatus for an agricultural vehicle
4. 4373597 - Tractor for agriculture
5. 4273007 - Transmission for agricultural tractor
6. 4262768 - Power transmission system for tractor
7. 4245518 - Device for tightening an endless element trained over driving members