Average Co-Inventor Count = 3.27
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. Uhde Gmbh (3 from 177 patents)
3 patents:
1. 5441548 - Process for the partial oxidation of bituminous oil
2. 4752308 - Process for the reconditioning of quench water
3. 4440544 - Process for the conversion of ground hydrous lignite into a pumpable