Average Co-Inventor Count = 4.61
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. Mitsubishi Gas Chemical Company, Inc. (3 from 2,248 patents)
2. Mgc Filsheet Co., Ltd. (1 from 52 patents)
3 patents:
1. 8451540 - Retardation film
2. 6596192 - Oxygen absorbent composition absorbing water vapor
3. 4963232 - Process for producing a purified hydrazine hydrate