Darrell Rose

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Orem, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
Hearing aid fitting system
- Patent number 6,574,342
- Issue date Jun 3, 2003
- Sonic Innovations, Inc.
- Keith L. Davis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid fitting system
- Patent number 6,201,875
- Issue date Mar 13, 2001
- Sonic Innovations, Inc.
- Keith L. Davis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE