John Livdahl

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Waseca, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for multicast communications using real time tran...
- Patent number 7,929,475
- Issue date Apr 19, 2011
- E. F. Johnson Company
- Dana Simonson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for multicast communications using real time tran...
- Patent number 7,221,660
- Issue date May 22, 2007
- E.F. Johnson Company
- Dana Simonson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR MULTICAST COMMUNICATIONS USING REAL TIME TRAN...
- Publication number 20070242670
- Publication date Oct 18, 2007
- E.F. Johnson Company
- Dana Simonson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE