Average Co-Inventor Count = 4.80
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. Learning Curve International Inc. (4 from 11 patents)
4 patents:
1. 6648237 - Toy vehicle track segment and method of manufacturing a toy vehicle track segment
2. 6645031 - Playboard with collapsing easel
3. D481424 - Toy track segment
4. D477641 - Edges of supports for playboard with easel