Average Co-Inventor Count = 2.00
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. Roper Corporation (4 from 70 patents)
4 patents:
1. D267000 - Power driven ski vehicle
2. D266917 - Power driven ski vehicle
3. 4286682 - Motorized ski bob
4. 4244436 - Vehicle with power driven ski