Average Co-Inventor Count = 1.00
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. Forskningsgruppe for Sjeldne, Jordarter (2 from 4 patents)
2 patents:
1. 3997445 - Apparatus for liquid-liquid countercurrent extraction
2. 3997445 - Apparatus for liquid-liquid countercurrent extraction