Average Co-Inventor Count = 1.98
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. American Greetings Corporation (5 from 423 patents)
2. Kenner Parker Toys Inc. (1 from 38 patents)
6 patents:
1. D287738 - Toy helicopter
2. D287379 - Toy clock
3. D287380 - Toy telephone
4. D285946 - Toy mobile
5. D279625 - Toy carrying case
6. D276832 - Doll house