Average Co-Inventor Count = 5.00
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. The Nasdaq Omx Group, Inc. (2 from 58 patents)
2 patents:
1. 8239309 - Closing price determination for an automated market system
2. 7698193 - Closing price determination for an automated market system