Average Co-Inventor Count = 2.40
ph-index = 1
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. Henkel Kommanditgesellschaft Auf Aktien (1 from 2,080 patents)
2. Gerhard Collardin Gesellschaft MIT Beschraenkter Haftung (1 from 1 patent)
2 patents:
1. 4707193 - Method for activating metal surfaces prior to zinc phosphation
2. 4600447 - After-passivation of phosphated metal surfaces