Average Co-Inventor Count = 4.00
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. Sumitomo Chemical Company, Limited (2 from 6,893 patents)
2. Seitetsu Kagaku Co., Ltd. (2 from 50 patents)
3. Nippon Steel Corporation (1 from 3,554 patents)
2 patents:
1. 4775394 - Process for separation of high purity gas from mixed gas
2. 4726815 - Process for adsorbing and separating carbon dioxide from gas mixture