Average Co-Inventor Count = 3.00
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. Joy Mm Delaware, Inc. (3 from 181 patents)
3 patents:
1. 8714882 - Drilling rig
2. 8297886 - Drilling rig
3. 7607866 - Drilling rig