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. Hoesch Aktiengesellschaft (1 from 49 patents)
2. Estel Hoesch Werke Aktiengesellschaft (1 from 15 patents)
2 patents:
1. 4634049 - Concrete crosstie with recesses and method for the production thereof
2. 4339077 - Rail mounting system