Christopher T. Welsh

Person

Noblesville, IN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Passive sound pressure level limiter with balancing circuit
- Patent number 8,515,084
- Issue date Aug 20, 2013
- Harman International Industries, Inc.
- Joshua James Barr
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Passive sound pressure level limiter
- Patent number 8,340,307
- Issue date Dec 25, 2012
- Harman International Industries, Inc.
- Joshua James Barr
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Earphone for wideband communication
- Patent number 8,300,871
- Issue date Oct 30, 2012
- MWM Acoustics, LLC
- Christopher T. Welsh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transducer package with interior support frame
- Patent number 8,155,366
- Issue date Apr 10, 2012
- MWM Acoustics, LLC
- John Charles Baumhauer, Jr.
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Controlled leakage omnidirectional electret condenser microphone el...
- Patent number 8,107,652
- Issue date Jan 31, 2012
- MWM Mobile Products, LLC
- Medford Alan Dyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transducer package with transducer die unsupported by a substrate
- Patent number 7,825,509
- Issue date Nov 2, 2010
- MWM Acoustics, LLC
- John Charles Baumhauer, Jr.
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Grant
Method for fabricating a transducer package with the transducer die...
- Patent number 7,790,492
- Issue date Sep 7, 2010
- MWM Acoustics, LLC
- John Charles Baumhauer, Jr.
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Grant
Microphone system for communication devices
- Patent number 7,751,575
- Issue date Jul 6, 2010
- John C. Baumhauer, Jr.
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone handset coupling system
- Patent number 7,646,865
- Issue date Jan 12, 2010
- MWM Acoustics, LLC
- Christopher Todd Welsh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Microphone
- Patent number D432119
- Issue date Oct 17, 2000
- Jeffrey P. McAteer
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Speaker mounting system
- Patent number 5,739,481
- Issue date Apr 14, 1998
- Lucent Technologies Inc.
- John C. Baumhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable loudspeaker/directional microphone peripheral
- Patent number 5,696,359
- Issue date Dec 9, 1997
- Lucent Technologies Inc.
- Larry Allen Marcus
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Directional microphone
- Patent number D384357
- Issue date Sep 30, 1997
- Lucent Technologies Inc.
- Jeffrey Phillip McAteer
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Directional microphone
- Patent number D381024
- Issue date Jul 15, 1997
- Lucent Technologies Inc.
- Gregory S. Hinzmann
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Directional microphone system
- Patent number 5,506,908
- Issue date Apr 9, 1996
- AT&T Corp.
- John C. Baumhauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Passive Sound Pressure Level Limiter with Balancing Circuit
- Publication number 20110158414
- Publication date Jun 30, 2011
- MWM Mobile Products, LLC
- Joshua James Barr
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Passive sound pressure level limiter
- Publication number 20110038491
- Publication date Feb 17, 2011
- MWM Mobile Products, LLC
- Joshua James Barr
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Transducer package with interior support frame
- Publication number 20100290661
- Publication date Nov 18, 2010
- MWM Acoustics, LLC
- John Charles Baumhauer, JR.
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Controlled leakage omnidirectional electret condenser microphone el...
- Publication number 20100027817
- Publication date Feb 4, 2010
- MWM Mobile Products, LLC
- Medford Alan Dyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
EARPHONE FOR WIDEBAND COMMUNICATION
- Publication number 20090116676
- Publication date May 7, 2009
- MWM Acoustics, LLC (an Indiana limited liability company)
- Christopher T. Welsh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Telephone handset coupling system
- Publication number 20080292066
- Publication date Nov 27, 2008
- MWM Acoustics, LLC
- Christopher Todd Welsh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Automotive microphone assembly
- Publication number 20070058821
- Publication date Mar 15, 2007
- MWM Acoustics, LLC, (an Indiana limited liability company)
- Christopher Todd Welsh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Christopher T. Welsh

Person

Patents Grantslast 30 patents

Passive sound pressure level limiter with balancing circuit

Passive sound pressure level limiter

Earphone for wideband communication

Transducer package with interior support frame

Controlled leakage omnidirectional electret condenser microphone el...

Transducer package with transducer die unsupported by a substrate

Method for fabricating a transducer package with the transducer die...

Microphone system for communication devices

Telephone handset coupling system

Microphone

Speaker mounting system

Portable loudspeaker/directional microphone peripheral

Directional microphone

Directional microphone

Directional microphone system

Patents Applicationslast 30 patents

Passive Sound Pressure Level Limiter with Balancing Circuit

Passive sound pressure level limiter

Transducer package with interior support frame

Controlled leakage omnidirectional electret condenser microphone el...

EARPHONE FOR WIDEBAND COMMUNICATION

Telephone handset coupling system

Automotive microphone assembly