Average Co-Inventor Count = 2.67
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. Norsk Hydro, A.s. (1 from 240 patents)
2. Norskhydro Asa (1 from 172 patents)
3. Norsk Hyro A.s. (1 from 1 patent)
3 patents:
1. 5947184 - Equipment for continuous casting of metals
2. 5634511 - Semi-continuous casting equipment having a centering device for
3. 5632323 - Casting equipment for casting metal