Average Co-Inventor Count = 2.57
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. (4 from 181 patents)
2. Joy Global Underground Mining LLC (1 from 133 patents)
3. Joy Mm Deleware, Inc. (1 from 2 patents)
6 patents:
1. 10052958 - Overhead power grid for mobile mining machines
2. 9623755 - Overhead power grid for mobile mining machines
3. 9283866 - Overhead power grid for mobile mining machines
4. 9056558 - Overhead power grid for mobile mining machines
5. 8400342 - Explosion proof electro-mechanical joystick
6. 8235470 - Cutter head containing its motors and gearcase