Average Co-Inventor Count = 2.40
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. Clouth Gummiwerke Aktiengesellschaft (2 from 20 patents)
2 patents:
1. 4500037 - Railway road bed
2. 4266719 - Track mounting assembly and sound-damping system therefore