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Class Information
Number: 181/132
Name: Acoustics > Anatomic or prosthetic relation > Ear and mouth > Auditory canal insert > With diaphragm
Description: Subject matter including a flexible element which form part of a sound sensing device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7593534 |
Transducer for bioacoustic signals |
Sep. 22, 2009 |
| 7074296 |
In-ear hearing aid and method for its manufacture |
Jul. 11, 2006 |
| 6879696 |
In-ear hearing aid and method for its manufacture |
Apr. 12, 2005 |
| 6847720 |
Quick-updating stethoscope receiver |
Jan. 25, 2005 |
| 6768803 |
Method and apparatus for selective acoustic signal filtering |
Jul. 27, 2004 |
| 6378648 |
Diaphragm assembly for stethoscope chest piece |
Apr. 30, 2002 |
| 6307943 |
Electro-acoustic transducer and housing |
Oct. 23, 2001 |
| 5467775 |
Modular auscultation sensor and telemetry system |
Nov. 21, 1995 |
| 5222050 |
Water-resistant transducer housing with hydrophobic vent |
Jun. 22, 1993 |
| 5113967 |
Audibility earplug |
May. 19, 1992 |
| 5031219 |
Apparatus and method for conveying amplified sound to the ear |
Jul. 9, 1991 |
| 5022486 |
Sound reproducing apparatus |
Jun. 11, 1991 |
| 4995473 |
Stethoscope with diaphragm head adapter |
Feb. 26, 1991 |
| 4852683 |
Earplug with improved audibility |
Aug. 1, 1989 |
| 4809811 |
Ear pad construction for earphones |
Mar. 7, 1989 |
| 4540063 |
Sound wave attenuation device |
Sep. 10, 1985 |
| 4420657 |
Adjustable headset |
Dec. 13, 1983 |
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