Average Co-Inventor Count = 1.30
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. Saarbergwerke Aktiengesellschaft (5 from 38 patents)
5 patents:
1. 4533002 - Device for gripping and raising tamping tools or for holding raised
2. 4128402 - Apparatus for compacting coal
3. 4123216 - Coal compacting apparatus
4. 4111664 - Method of and an arrangement for making stable massive compacted coal
5. 4108610 - Method of and apparatus for compacting coking coal