Average Co-Inventor Count = 1.20
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. Hedstrom Co. (3 from 19 patents)
3 patents:
1. 4256300 - Foldable play gym
2. 4190283 - Foldable play gym
3. 4045045 - Foldable child walker