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Class Information
Number: 181/128
Name: Acoustics > Anatomic or prosthetic relation > Ear and mouth
Description: Subject matter having an earpiece and mouthpiece operatively connected together.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7401679 |
Adaptor for mounting a sound tube in an earpiece |
Jul. 22, 2008 |
| 6820717 |
Pressure regulating earplug |
Nov. 23, 2004 |
| 6817440 |
Multi-channel headphones |
Nov. 16, 2004 |
| 6775390 |
Headset with movable earphones |
Aug. 10, 2004 |
| 6769508 |
Underwater audio system |
Aug. 3, 2004 |
| 6721433 |
Acoustic apparatus wearable on the head |
Apr. 13, 2004 |
| 6707924 |
Holder for portable electronic equipment |
Mar. 16, 2004 |
| 6684976 |
Headset ear seal |
Feb. 3, 2004 |
| 6622816 |
Personal protective devices having an energy activated material |
Sep. 23, 2003 |
| 6434251 |
Headset with adjustable earhook |
Aug. 13, 2002 |
| 6408981 |
Extruded monolithic foam earplug |
Jun. 25, 2002 |
| 6252970 |
Headphone |
Jun. 26, 2001 |
| 6229901 |
Auditory feedback device |
May. 8, 2001 |
| 6138790 |
Band earplug adapted to prevent soiling |
Oct. 31, 2000 |
| 6105714 |
Hearing protection device |
Aug. 22, 2000 |
| 6035961 |
Earphone with a soft, compressible housing and adjustable earpiece loop |
Mar. 14, 2000 |
| 5185807 |
Headset with multi-position stirrup assemblies |
Feb. 9, 1993 |
| 5142587 |
Intra-concha type electroacoustic transducer for use with audio devices etc. |
Aug. 25, 1992 |
| 5105904 |
Cerumen trap for hearing aids |
Apr. 21, 1992 |
| 4473130 |
Crash helmet with communication system |
Sep. 25, 1984 |
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