Average Co-Inventor Count = 1.67
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. Other (1 from 832,891 patents)
2. Hasbro, Inc. (1 from 497 patents)
2 patents:
1. 5676374 - Toy staircase game apparats and method
2. 5016873 - Playswing assembly