Average Co-Inventor Count = 3.75
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. Gräbener Pressensysteme Gmbh & Co. Kg (2 from 3 patents)
2 patents:
1. 5823104 - Press for cold working of metal workpieces
2. 5666879 - Stampling machine or press, particularly mintage or coining press