Average Co-Inventor Count = 2.00
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. Harnischfeger Technologies, Inc. (3 from 152 patents)
2. Joy Global Surface Mining Inc (1 from 88 patents)
4 patents:
1. 10215269 - Internal venting system for industrial machines
2. 9945470 - Internal venting system for industrial machines
3. 9534682 - Internal venting system for industrial machines
4. 9009993 - Internal venting system for industrial machines