Average Co-Inventor Count = 3.00
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. Yanmar Co., Ltd. (2 from 651 patents)
2 patents:
1. D527020 - Internal combustion engine
2. D522021 - Portion of an internal combustion engine