Average Co-Inventor Count = 2.00
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. Vermeer Manufacturing Company, Inc. (2 from 469 patents)
2. Vermeer Corporation (1 from 6 patents)
3 patents:
1. 7884736 - Common interface architecture for horizontal directional drilling machines and walk-over guidance systems
2. 7737863 - Common interface architecture for horizontal directional drilling machines and walk-over guidance systems
3. 7218244 - Common interface architecture for horizontal directional drilling machines and walk-over guidance systems