Average Co-Inventor Count = 1.60
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. Ing. Erich Pfeiffer Gmbh (2 from 111 patents)
2 patents:
1. 8336563 - Device for application of a cosmetic powder to a sponge
2. 8292124 - Discharge device