Average Co-Inventor Count = 1.95
ph-index = 5
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 (6 from 47 patents)
6 patents:
1. 4299051 - Mountable wheel for toy vehicle
2. D258222 - Toy jack
3. 4193639 - Mountable wheel for toy vehicle
4. 4187636 - Camping trailer
5. 4173095 - Toy vehicle
6. D253193 - Toy vehicle