Average Co-Inventor Count = 2.00
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. Lionel L.c.c. (2 from 52 patents)
2 patents:
1. 6616506 - Inserted molded traction tire for a model toy train
2. 6485347 - Puffing fan driven smoke unit for a model train