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. Polysius Ag (2 from 97 patents)
2 patents:
1. 4091750 - Grate plate arrangement for a travelling grate
2. 3977824 - Travelling hearth housing