Average Co-Inventor Count = 3.75
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. Vermeer Manufacturing Company, Inc. (4 from 470 patents)
4 patents:
1. 8819966 - Machine attachment based speed control system
2. 8732992 - Excavation machine with auto reverse
3. 8371048 - Excavation machine with auto reverse
4. 8347529 - Machine attachment based speed control system