Average Co-Inventor Count = 2.25
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. Kyosan Denki Co., Ltd. (3 from 84 patents)
3 patents:
1. 11097611 - Vent control valve for fuel tank
2. 10670161 - Vent control valve for fuel tank
3. 10525821 - Vent control valve for fuel tank