Average Co-Inventor Count = 2.00
ph-index = 1
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 (1 from 832,718 patents)
3 patents:
1. D881623 - Toy train car
2. D833546 - Toy train roundhouse
3. 8776695 - Support sleeve for a track riser