Average Co-Inventor Count = 4.00
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. Norsk Hydro, A.s. (1 from 240 patents)
1 patent:
1. 5571477 - Equipment for sampling and work-up for analysis of PAH and other organic