Average Co-Inventor Count = 1.33
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. Rakuten Kobo Inc. (2 from 64 patents)
2 patents:
1. 9939892 - Method and system for customizable multi-layered sensory-enhanced E-reading interface
2. 9916064 - System and method for toggle interface