Average Co-Inventor Count = 2.67
ph-index = 1
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 patents:
1. 11612114 - Stump cutter drive system
2. 11612115 - Stump cutter drive system