Average Co-Inventor Count = 3.64
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. Amsa, Inc. (4 from 90 patents)
4 patents:
1. RE47970 - Cart
2. D798019 - Cart
3. D746012 - Cart
4. 8991836 - Child seat for a shopping cart