Average Co-Inventor Count = 3.04
ph-index = 4
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. Ruhrchemie Aktiengesellschaft (3 from 125 patents)
2. Hoechst Aktiengesellschaft (2 from 6,662 patents)
3. Klockner-humboldt-deutz Ag (1 from 433 patents)
4. Uhde Gmbh (1 from 177 patents)
5. Ruhrkohle Ol Und Gas Gmbh (1 from 1 patent)
5 patents:
1. 5273212 - Burner with a cooling chamber having ceramic platelets attached to a
2. 4973342 - Device with granular bed filters for raw gas purification
3. 4752303 - Process for producing synthesis gas by partial oxidation of coal-water
4. 4453410 - Method and apparatus for locating material defects in hollow bodies
5. 4372253 - Radiation boiler