Henry Downs

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Portland, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
Manifold combiner for multi-station broadcast sites apparatus and m...
- Patent number 7,864,001
- Issue date Jan 4, 2011
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Switchable multi-transmitter combiner and method
- Patent number 7,254,374
- Issue date Aug 7, 2007
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dual feed common radiator antenna system and method for broadcastin...
- Patent number 7,084,822
- Issue date Aug 1, 2006
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for high power switching
- Patent number 6,953,346
- Issue date Oct 11, 2005
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compact high power, high directivity, waveguide directional coupler...
- Patent number 5,043,684
- Issue date Aug 27, 1991
- General Signal Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Manifold combiner for multi-station broadcast sites apparatus and m...
- Publication number 20070252661
- Publication date Nov 1, 2007
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Switchable multi-transmitter combiner and method
- Publication number 20060017521
- Publication date Jan 26, 2006
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and apparatus for high power switching
- Publication number 20050130455
- Publication date Jun 16, 2005
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Dual feed common radiator antenna system and method for broadcastin...
- Publication number 20050068244
- Publication date Mar 31, 2005
- SPX Corporation
- Henry Downs
- H01 - BASIC ELECTRIC ELEMENTS