Average Co-Inventor Count = 4.00
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. Renaissance Learning, Inc. (2 from 14 patents)
2 patents:
1. D552606 - Handheld wireless communication device
2. D541290 - Handheld wireless communication device keypad