Average Co-Inventor Count = 1.81
ph-index = 10
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 (14 from 2,697 patents)
2. Toyoda Gosei Co., Ltd. (1 from 3,081 patents)
14 patents:
1. D312435 - Steering wheel for agricultural machine
2. D306450 - Agricultural tractor cabin
3. D306301 - Agricultural tractor
4. D305236 - Agricultural tractor
5. D301224 - Steering wheel for agricultural machine
6. D301039 - Housing for an agricultural tractor
7. D297433 - Tractor
8. D297239 - Agricultural tractor
9. D297142 - Cab for an agricultural tractor
10. 4669565 - Agricultural tractor with a driver's cabin
11. D283135 - Agricultural tractor
12. D282849 - Agricultural tractor
13. D258824 - Agricultural tractor
14. D258509 - Tractor