Average Co-Inventor Count = 3.22
ph-index = 4
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. Arbitron Inc. (2 from 40 patents)
2. Control Data Corporation (1 from 210 patents)
3. The Arbitron Company (1 from 12 patents)
4 patents:
1. 7483835 - AD detection using ID code and extracted signature
2. 7222071 - Audio data receipt/exposure measurement with code monitoring and signature extraction
3. 5740035 - Self-administered survey systems, methods and devices
4. 5483276 - Compliance incentives for audience monitoring/recording devices