Average Co-Inventor Count = 3.00
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. Hokuetsu Paper Mills, Ltd. (1 from 10 patents)
2. Nippon Rensui Co. (1 from 7 patents)
1 patent:
1. 7553394 - Method for removing potassium from ash produced in a kraft pulping process recovery boiler using a Na-type cation exchange organic resin