Mark Richardson

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Columbia, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Media exposure data collection and security
- Patent number 9,386,069
- Issue date Jul 5, 2016
- THE NIELSEN COMPANY (US), LLC
- John Stavropoulos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
MEDIA EXPOSURE DATA COLLECTION AND SECURITY
- Publication number 20130174231
- Publication date Jul 4, 2013
- Arbitron, Inc.
- John Stavropoulos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE