Average Co-Inventor Count = 3.20
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. Kureha Kagaku Kogyo Kabushiki Kaisha (4 from 776 patents)
4 patents:
1. 4310404 - Electrolytic bath vessel elements
2. 4211628 - Electrolytic bath assembly
3. 3988235 - Vertical diaphragm type electrolytic apparatus for caustic soda
4. 3981788 - Caustic alkali producing multiple vertical diaphragm type electrolytic