Average Co-Inventor Count = 5.00
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. Hitachi, Ltd. (2 from 42,517 patents)
2. The Kansai Electric Power Co., Inc. (2 from 195 patents)
2 patents:
1. 5456115 - Method of counterflow through a pump and method of controlling the
2. 5090872 - Method of controlling the operation of a pump in a pumping installation