Average Co-Inventor Count = 2.00
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. Toybox Corporation (2 from 23 patents)
2 patents:
1. D271120 - Toy trackway
2. 4357778 - Toy vehicle and trackway