John Frederick Corey

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Auckland, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Audio jack with plug or head set identification circuit
- Patent number 7,270,554
- Issue date Sep 18, 2007
- Phitek Systems Ltd.
- John Frederick Corey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Audio jack with plug or head set identification circuit
- Patent number 6,988,905
- Issue date Jan 24, 2006
- Slab DSP Limited
- John Frederick Corey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Loudspeakers
- Patent number 6,411,723
- Issue date Jun 25, 2002
- Slab Technology Limited
- Christopher Colin Lock
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Audio jack with plug or head set indentification circuit
- Publication number 20060166539
- Publication date Jul 27, 2006
- John Frederick Corey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Audio jack
- Publication number 20030153205
- Publication date Aug 14, 2003
- Slab DSP Limited of Auckland, New Zealand
- John Frederick Corey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Noise suppression loudspeaker
- Publication number 20010031052
- Publication date Oct 18, 2001
- Christopher Colin Lock
- H04 - ELECTRIC COMMUNICATION TECHNIQUE