Average Co-Inventor Count = 6.54
ph-index = 3
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 Directv Group, Inc. (3 from 1,033 patents)
3 patents:
1. 8873929 - Digital recording and playback
2. 8433182 - Video data recorder with personal channels
3. 7773860 - Video data recorder with personal channels