Average Co-Inventor Count = 4.80
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. Deutsche Carbone Ag (1 from 16 patents)
2. Gft Gesellschaft Fur Trenntechnik Mbh (1 from 2 patents)
2 patents:
1. 5164424 - Polymer having a betaine structure, solution diffusion membrane, process
2. 4865743 - Method for production of solution-diffusion membranes and their