Average Co-Inventor Count = 3.27
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. Heidelberger Zement Ag (3 from 15 patents)
3 patents:
1. 4655982 - Method for the continuous production of plates of fibre reinforced
2. 4632720 - Apparatus for preparing an annular body of a hydraulically setting mass
3. 4472335 - Method for preparing an annular body of a hydraulically setting mass