Average Co-Inventor Count = 1.67
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. Ishida Co. Limited (2 from 448 patents)
2 patents:
1. 6822171 - Article handling system
2. 6605785 - Combinatorial weighing and counting device with multi-part collecting chute