Average Co-Inventor Count = 1.20
ph-index = 2
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. Other (3 from 832,891 patents)
3 patents:
1. 6560882 - Hand drawing machine
2. 6409572 - Big mouth doll
3. 5476070 - First walker's aid