Average Co-Inventor Count = 2.86
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. Crow River Industries, Inc. (2 from 4 patents)
2 patents:
1. 5672041 - Collapsible, powered platform for lifting wheelchair
2. 5401135 - Foldable platform wheelchair lift with safety barrier