Average Co-Inventor Count = 2.18
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. Lanard Toys Limited (4 from 28 patents)
4 patents:
1. D757851 - Marker
2. D701902 - Chalk holder
3. D691672 - Boomerang
4. D671167 - Chalk holder