Average Co-Inventor Count = 4.00
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. Harnischfeger Technologies, Inc. (3 from 152 patents)
3 patents:
1. 9302267 - Pick holder
2. D720375 - Pick holder
3. D709112 - Pick holder