Average Co-Inventor Count = 3.60
ph-index = 3
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. (3 from 3,472 patents)
3 patents:
1. 5051178 - Process of producing composite semipermeable membrane
2. 4857363 - Process for preparation of semipermeable composite membrane
3. 4758343 - Interfacially synthesized reverse osmosis membrane