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Class Information
Number: 181/136
Name: Acoustics > Anatomic or prosthetic relation > Ear and mouth > Deflector type
Description: Subject matter wherein there is a device to deflect sound waves into the auditory canal.

Patents under this class:

Patent Number Title Of Patent Date Issued
8328731 Method and system for reconstructing the three-dimensional shape of the surface of at least a portion of an ear canal and/or of a concha Dec. 11, 2012
8220585 Non-electronic hearing aid Jul. 17, 2012
7766120 Cap for use as hearing protection Aug. 3, 2010
7464786 High sound attenuating hearing protection device Dec. 16, 2008
7264081 Hearing protection earplug Sep. 4, 2007
7249651 Swiveling sound-gathering ear guard for masks and helmets Jul. 31, 2007
6874169 Swiveling sound-gathering ear guard for masks and helmets Apr. 5, 2005
6571907 Portable acoustic hearing enhancement device Jun. 3, 2003
6325173 Ear wind shield Dec. 4, 2001
6237714 Article for collecting sound for ears May. 29, 2001
6229901 Auditory feedback device May. 8, 2001
6220386 Flexible aerodam to reduce the sound of turbulence Apr. 24, 2001
6082486 Article for collecting sound for ears Jul. 4, 2000
6029769 Permeable aerodam to reduce wind noise Feb. 29, 2000
5965850 Non-electronic hearing aid Oct. 12, 1999
5696356 Passive sound gathering apparatus Dec. 9, 1997
5661270 Sound capturing device Aug. 26, 1997
5345512 Sound-wave collector Sep. 6, 1994
5189265 Cap with hearing enhancing structure Feb. 23, 1993
5020629 Listening enhancement device Jun. 4, 1991
4997056 Ear-focused acoustic reflector Mar. 5, 1991
4890688 Anechoic ear piece Jan. 2, 1990
4771859 Hearing aid apparatus Sep. 20, 1988
4768613 Directional hearing enhancement Sep. 6, 1988
4574912 Ear muff hearing aid Mar. 11, 1986
4556122 Ear acoustical hearing aid Dec. 3, 1985
4457396 Sound deflector for headset ear phones Jul. 3, 1984
4421199 Sound reflector type hearing aid Dec. 20, 1983
3938616 Sound multiplier Feb. 17, 1976

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