Average Co-Inventor Count = 2.00
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. Mitsubishi Petrochemical Company Limited (1 from 546 patents)
2. Yuka Badische Co., Ltd. (1 from 3 patents)
1 patent:
1. 4034506 - Hydroponic method using a porous foam plate, and a container used