Average Co-Inventor Count = 3.43
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. Morningstar Corporation (1 from 8 patents)
2. Morningstar Financial (1 from 1 patent)
2 patents:
1. 5433480 - Notebook binder system
2. D352309 - Looseleaf binder