Average Co-Inventor Count = 3.00
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. Ewald Dorken Ag (1 from 38 patents)
2. Ewald Doerken Ag (1 from 9 patents)
2 patents:
1. 8263184 - Process for the production of an underlay for roofs
2. 7698858 - Membrane for the protection of buildings