Christopher Drake Conger

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Stillwater, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Hearing aid positioning system and structure
- Patent number 9,571,939
- Issue date Feb 14, 2017
- IntriCon Corporation
- Robert J. Fretz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid positioning system and structure
- Patent number 8,605,927
- Issue date Dec 10, 2013
- IntriCon Corporation
- Robert J. Fretz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Hearing Aid Positioning System And Structure
- Publication number 20140105438
- Publication date Apr 17, 2014
- IntriCon Corporation
- Robert J. Fretz
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Hearing Aid Positioning System And Structure
- Publication number 20120076336
- Publication date Mar 29, 2012
- IntriCon Corporation
- Robert J. Fretz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE