Average Co-Inventor Count = 3.00
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. Anderson Press Incorporated (5 from 12 patents)
5 patents:
1. D490467 - Interactive quiz cartridge in an open position
2. D481071 - Interactive quiz machine with cartridge in an open position
3. D480108 - Interactive quiz cartridge
4. D480109 - Interactive quiz machine with cartridge
5. D478126 - Interactive quiz machine