Average Co-Inventor Count = 4.00
ph-index = 3
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. Kraftwerk Union Aktiengesellschaft (1 from 461 patents)
2. Bergwerksverband Gmbh (1 from 231 patents)
3. Didier Engineering Gmbh (1 from 106 patents)
4. Perfluktiv Technik Ag (1 from 3 patents)
4 patents:
1. 4703032 - Active coke produced from pit coal and production process thereof
2. 4407701 - Apparatus for treating gases produced from coal
3. 4303495 - Recovery of liquid and gaseous hydrocarbons from raw materials
4. 4254338 - Determination of temperature distributions on awkwardly located or