Average Co-Inventor Count = 2.00
ph-index = 1
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. (1 from 651 patents)
1 patent:
1. 8904772 - Engine exhaust gas heat exchanger and energy supplying device using the same