Average Co-Inventor Count = 3.43
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. Xm Satellite Radio Inc. (2 from 63 patents)
2 patents:
1. 7035628 - Method and apparatus for content blocking
2. 6553077 - Method and apparatus for customized selection of audio channels