Average Co-Inventor Count = 3.00
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. Dr. Ing. H.c. F. Porsche Aktiengesellschaft (3 from 4,052 patents)
3 patents:
1. 5158053 - Oil pan for an internal-combustion engine
2. 4680493 - Ventilating device for a generator
3. 4273207 - Supporting pipe to constitute a drive unit for an automotive vehicle