Average Co-Inventor Count = 1.00
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. Yale Materials Handling Corporation (3 from 9 patents)
3 patents:
1. D346259 - Fork lift truck
2. D327356 - Fork lift truck
3. D309051 - Industrial truck control handle