Average Co-Inventor Count = 1.33
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. Beijing University of Technology (1 from 371 patents)
2. Oretek Limited (1 from 2 patents)
2 patents:
1. 7001523 - Ion exchange
2. 6203708 - Ion exchange resin