Average Co-Inventor Count = 2.07
ph-index = 4
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 (5 from 47 patents)
5 patents:
1. 4299051 - Mountable wheel for toy vehicle
2. 4193639 - Mountable wheel for toy vehicle
3. 4021961 - Wheel mounting for toy vehicles
4. 3986294 - Miniature toy fork lift vehicle
5. 3962820 - Connection for miniature toy vehicle parts