Average Co-Inventor Count = 5.00
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. Hyster - Yale Group, Inc. (3 from 92 patents)
2. Nacco Materials Handling Group, Inc. (10 patents)
3 patents:
1. D876043 - Hose header
2. D820551 - Lift truck mast
3. D764740 - Lift truck mast