David J. Schena

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Wayne, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Interactive advertising system and device
- Patent number 5,946,646
- Issue date Aug 31, 1999
- Digital Broadband Applications Corp.
- Robert J. Schena
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Double wireless access point bridging system
- Publication number 20040014494
- Publication date Jan 22, 2004
- Paul Hellhake
- H04 - ELECTRIC COMMUNICATION TECHNIQUE