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Class Information
Number: 181/130
Name: Acoustics > Anatomic or prosthetic relation > Ear and mouth > Auditory canal insert
Description: Subject matter wherein there is a device that is operatively inserted in the auditory canal.










Sub-classes under this class:

Class Number Class Name Patents
181/133 Deflector type 12
181/135 Ear insert 327
181/134 Eardrum 13
181/131 Stethoscope 231
181/132 With diaphragm 20


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
4974606 Hearing protector and method of manufacturing the same Dec. 4, 1990
4972492 Earphone Nov. 20, 1990
4969534 Hearing aid employing a viscoelastic material to adhere components to the casing Nov. 13, 1990
4953215 Arrangement to prevent the intrusion of foreign matter into an electro-acoustical transducer Aug. 28, 1990
4945569 Hearing aid Jul. 31, 1990
4936411 Detectable earplug Jun. 26, 1990
4937876 In-the-ear hearing aid Jun. 26, 1990
4913165 Underwater eardrum protector Apr. 3, 1990
4880076 Hearing aid ear piece having disposable compressible polymeric foam sleeve Nov. 14, 1989
4878560 Earmold Nov. 7, 1989
4869339 Harness for suppression of hearing aid feedback Sep. 26, 1989
4867267 Hearing aid transducer Sep. 19, 1989
4864610 Earpiece for a telephone headset Sep. 5, 1989
4860362 Hearing aid and method for making it Aug. 22, 1989
4854415 Hearing aid whose components are mounted in a hearing aid housing Aug. 8, 1989
4852683 Earplug with improved audibility Aug. 1, 1989
4840249 Apparatus for srewing a cover onto a screw neck of a hearing aid Jun. 20, 1989
4834211 Anchoring element for in-the-ear devices May. 30, 1989
4830139 Hearing aid holding means and method of using same May. 16, 1989
4815560 Microphone with frequency pre-emphasis Mar. 28, 1989
4811402 Method and apparatus for reducing acoustical distortion Mar. 7, 1989
4800982 Cleanable in-the-ear electroacoustic transducer Jan. 31, 1989
4763752 Mount for a sound transducer, particularly an earphone Aug. 16, 1988
4763753 Insert earphones for audiometry Aug. 16, 1988
4729451 Receiver suspension and acoustic porting system Mar. 8, 1988
4724922 Acoustic earpiece Feb. 16, 1988
4716985 In-the-ear hearing aid Jan. 5, 1988
4679650 Hearing aid ear mold end piece for the auditory canal and hearing aid ear mold Jul. 14, 1987
4677679 Insert earphones for audiometry Jun. 30, 1987
4657106 "Ear" hearing aid Apr. 14, 1987
4620605 Suspension for electro-acoustical transducers Nov. 4, 1986
4585089 Coupling element for a hearing aid Apr. 29, 1986
4554993 Inflight headset for civil aircraft Nov. 26, 1985
4553627 Hearing aid wax guard Nov. 19, 1985
4450930 Microphone with stepped response May. 29, 1984
4442917 Vented acoustic ear mold for hearing aids Apr. 17, 1984
4418787 Hearing aid with audio path duct extension element, and extension element attachment Dec. 6, 1983
4412096 Combination earmold and receiver adapter Oct. 25, 1983
4407389 Vented acoustic ear mold for hearing aids Oct. 4, 1983
4403120 Earphone Sep. 6, 1983
4381830 Continuous flow earmold tubing connector May. 3, 1983
4349083 Acoustic ear mold Sep. 14, 1982
4349081 Method for retaining a hearing aid in place and hearing aid harness Sep. 14, 1982
4349082 Acoustical damping element and method of forming same Sep. 14, 1982
4347911 Acoustic headset Sep. 7, 1982
4010820 Acoustic ear mold for hearing aid Mar. 8, 1977
4006796 Earpiece which substantially consists of a thin-walled flexible capsule filled with a liquid medium Feb. 8, 1977

1 2 3 4 5










 
 
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