Fred D. Waldhauer

Person

La Honda, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hearing aid having plural microphones and a microphone switching sy...
- Patent number 6,327,370
- Issue date Dec 4, 2001
- Etymotic Research, Inc.
- Mead Killion
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid having plural microphones and a microphone switching sy...
- Patent number 6,101,258
- Issue date Aug 8, 2000
- Etymotic Research, Inc.
- Mead Killion
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid having plural microphones and a microphone switching sy...
- Patent number 5,524,056
- Issue date Jun 4, 1996
- Etymotic Research, Inc.
- Mead Killion
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiband programmable compression system
- Patent number 5,488,668
- Issue date Jan 30, 1996
- ReSound Corporation
- Fred Waldhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiband programmable compression system
- Patent number 5,278,912
- Issue date Jan 11, 1994
- ReSound Corporation
- Fred Waldhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-band programmable compression system
- Patent number 4,882,762
- Issue date Nov 21, 1989
- ReSound Corporation
- Fred D. Waldhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low voltage programmable compressor
- Patent number 4,882,761
- Issue date Nov 21, 1989
- ReSound Corporation
- Fred D. Waldhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variolosser
- Patent number 4,868,517
- Issue date Sep 19, 1989
- ReSound Corporation
- Fred D. Waldhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variolosser
- Patent number 4,808,945
- Issue date Feb 28, 1989
- Resound Corporation
- Fred D. Waldhauer

Fred D. Waldhauer

Person

Patents Grantslast 30 patents

Hearing aid having plural microphones and a microphone switching sy...

Hearing aid having plural microphones and a microphone switching sy...

Hearing aid having plural microphones and a microphone switching sy...

Multiband programmable compression system

Multiband programmable compression system

Multi-band programmable compression system

Low voltage programmable compressor

Variolosser

Variolosser