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. Hasbro Industries, Inc. (1 from 48 patents)
2. Hasbro Development Corporation (1 from 12 patents)
2 patents:
1. D279492 - Toy glider
2. 4129963 - Toy article having changeable expression graphics