Elmer Carlson

Person

Glenveiw, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Microphone for hearing aid and communications applications having s...
- Patent number 7,245,728
- Issue date Jul 17, 2007
- Etymotic Research, Inc.
- Mead C. Killion
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Vibration balanced receiver
- Patent number 7,164,776
- Issue date Jan 16, 2007
- Knowles Electronics, LLC
- Thomas Miller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Microphone for hearing aid and communications applications having s...
- Patent number 6,876,749
- Issue date Apr 5, 2005
- Etymotic Research, Inc.
- Mead C. Killion
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission detection and switch system for hearing improvement ap...
- Patent number 6,694,034
- Issue date Feb 17, 2004
- Etymotic Research, Inc.
- Stephen D. Julstrom
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiver and method of construction
- Patent number 6,654,477
- Issue date Nov 25, 2003
- Knowles Electronics, Inc.
- Thomas E. Miller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for mitigating RF interference in a hearing aid
- Patent number 6,307,944
- Issue date Oct 23, 2001
- Knowles Electtronics LLC
- Reginald G. Garratt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electret assembly
- Patent number 5,335,286
- Issue date Aug 2, 1994
- Knowles Electronics, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Combined microphone and magnetic induction pickup system
- Patent number 5,101,435
- Issue date Mar 31, 1992
- Knowles Electronics, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dual outlet passage hearing aid transducer
- Patent number 5,068,901
- Issue date Nov 26, 1991
- Knowles Electronics, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustic transducer with improved electrode spacing
- Patent number RE33718
- Issue date Oct 15, 1991
- Knowles Electronics, Inc.
- Elmer V. Carlson
- 367 - Communications, electrical: acoustic wave systems and devices
Information Patent Grant
Magnetically shielded electromagnetic acoustic transducer
- Patent number 4,956,868
- Issue date Sep 11, 1990
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid transducer
- Patent number 4,867,267
- Issue date Sep 19, 1989
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Passive ear protector
- Patent number 4,807,612
- Issue date Feb 28, 1989
- Industrial Research Products, Inc.
- Elmer V. Carlson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Cleanable in-the-ear electroacoustic transducer
- Patent number 4,800,982
- Issue date Jan 31, 1989
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustic transducer with improved electrode spacing
- Patent number 4,730,283
- Issue date Mar 8, 1988
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Miniature acoustical transducer with filter/regulator power supply...
- Patent number 4,509,193
- Issue date Apr 2, 1985
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustic transducer of improved construction
- Patent number 4,272,654
- Issue date Jun 9, 1981
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FET Amplifier with protective circuit
- Patent number 4,151,480
- Issue date Apr 24, 1979
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustic transducer with improved electret assembly
- Patent number 4,063,050
- Issue date Dec 13, 1977
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transducer coupling system
- Patent number 4,006,321
- Issue date Feb 1, 1977
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transducer with improved armature and yoke construction
- Patent number 3,935,398
- Issue date Jan 27, 1976
- Industrial Research Products, Inc.
- Elmer V. Carlson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Damping element
- Patent number 3,930,560
- Issue date Jan 6, 1976
- Industrial Research Products, Inc.
- Elmer V. Carlson
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Microphone for hearing aid and communications applications having s...
- Publication number 20050169490
- Publication date Aug 4, 2005
- Etymotic Research, Inc.
- Mead C. Killion
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission detection and switch system for hearing improvement ap...
- Publication number 20030044033
- Publication date Mar 6, 2003
- Stephen D. Julstrom
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Vibration balanced receiver
- Publication number 20010012375
- Publication date Aug 9, 2001
- Thomas Miller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Elmer Carlson

Person

Patents Grantslast 30 patents

Microphone for hearing aid and communications applications having s...

Vibration balanced receiver

Microphone for hearing aid and communications applications having s...

Transmission detection and switch system for hearing improvement ap...

Receiver and method of construction

System for mitigating RF interference in a hearing aid

Electret assembly

Combined microphone and magnetic induction pickup system

Dual outlet passage hearing aid transducer

Acoustic transducer with improved electrode spacing

Magnetically shielded electromagnetic acoustic transducer

Hearing aid transducer

Passive ear protector

Cleanable in-the-ear electroacoustic transducer

Acoustic transducer with improved electrode spacing

Miniature acoustical transducer with filter/regulator power supply...

Acoustic transducer of improved construction

FET Amplifier with protective circuit

Acoustic transducer with improved electret assembly

Transducer coupling system

Transducer with improved armature and yoke construction

Damping element

Patents Applicationslast 30 patents

Microphone for hearing aid and communications applications having s...

Transmission detection and switch system for hearing improvement ap...

Vibration balanced receiver