Average Co-Inventor Count = 4.71
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. Mattel, Inc. (4 from 1,703 patents)
4 patents:
1. 7762867 - Lever and wheel activated toy vehicles
2. 6764376 - Spring-driven toy vehicle
3. 6663463 - Sound activated toy vehicle
4. 6565411 - Key activated toy vehicle