Average Co-Inventor Count = 4.00
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. Daifuku Co., Ltd. (2 from 708 patents)
2 patents:
1. 4823704 - Rail vehicle conveying system and rail covers therefor
2. 4545303 - Monorail conveyor system