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. Houilleres Du Bassin Du Nord Et Du Pasde-calais (1 from 3 patents)
2. Houilleres Du Bassin Du Nord Et, Due Pas-de-calais (1 from 1 patent)
2 patents:
1. 4197160 - Process by means of which moulded coke can be obtained from non-cokable
2. 4193355 - Furnace walls which can be used at high temperatures