Average Co-Inventor Count = 2.67
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. Voest-alpine Aktiengesellschaft (2 from 333 patents)
2 patents:
1. D306898 - Hand-wheel for a valve
2. 4411148 - Press brake