Average Co-Inventor Count = 2.00
ph-index = 3
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. (3 from 1,703 patents)
3 patents:
1. 4787876 - Toy musical playset
2. 4673373 - Transformable toy block and hinge therefor
3. 4645471 - Busy ball child's toy