Average Co-Inventor Count = 5.09
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. Gerhard Collardin Gmbh (1 from 16 patents)
2. Hoesch Stahl Aktiengesellschaft (1 from 11 patents)
2 patents:
1. 4942080 - Composite material for vibration damping and structural sound damping
2. 4497668 - Phosphating process for zinc-plated metals