Average Co-Inventor Count = 3.00
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. Toray Industries, Inc. (2 from 3,477 patents)
2 patents:
1. 4700723 - Tobacco filter and fibrous ion exchange resin
2. 4693828 - Method of ion-exchanging and/or adsorption