Average Co-Inventor Count = 1.29
ph-index = 3
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 Technologies, Inc. (2 from 31 patents)
2. Joy Manufacturing Company (1 from 171 patents)
3 patents:
1. 5088594 - Chain and flight conveyor
2. 5000310 - Chain and flight conveyor
3. 4607891 - Rotary retainer for mining bits