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. The Nielsen Comapny (US), LLC (5 from 2,171 patents)
2. Arbitron Inc. (40 patents)
5 patents:
1. 12114116 - Gathering research data
2. 11832036 - Gathering research data
3. 11317175 - Gathering research data
4. 10200769 - Gathering research data
5. 9124378 - Gathering research data