Average Co-Inventor Count = 1.50
ph-index = 1
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. Tonka Corporation (2 from 47 patents)
2 patents:
1. 3986294 - Miniature toy fork lift vehicle
2. 3953937 - Part assembly for toy vehicles