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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 |
| 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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