Average Co-Inventor Count = 2.29
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 Nielsen Comapny (us), LLC (6 from 2,166 patents)
2. Nielsen Media Research, Inc. (41 patents)
6 patents:
1. 12219209 - Methods and apparatus for metering portable media players
2. 11882333 - Methods and apparatus for metering portable media players
3. 11057674 - Methods and apparatus for metering portable media players
4. 10356471 - Methods and apparatus for metering portable media players
5. 9514135 - Methods and apparatus for metering portable media players
6. 8914819 - Methods and apparatus for metering portable media players