Hearing Aid
|
PAT. NO. |
Title |
| 552 |
4,815,138 |
In-the-ear hearing-aid with pivotable
inner and outer sections |
| 553 |
4,803,853 |
Ornamental ear insert and hearing
aid |
| 554 |
4,803,732 |
Hearing aid amplification method
and apparatus |
| 555 |
4,800,884 |
Magnetic induction hearing aid |
| 556 |
4,800,636 |
Process for manufacturing an in-the-ear
canal hearing aid |
| 557 |
4,792,977 |
Hearing aid circuit |
| 560 |
4,791,672 |
Wearable digital hearing aid and
method for improving hearing ability |
| 561 |
4,791,620 |
Tactile hearing aid |
| 562 |
4,790,019 |
Remote hearing aid volume control
|
| 563 |
4,783,816 |
Hearing aid to be worn behind the
ear having battery and volume control facing in opposite directions
|
| 564 |
4,783,815 |
Manufacturing miniature hearing
aid having a multi-layer circuit arrangement |
| 565 |
4,776,322 |
Implantable electromagnetic middle-ear
bone-conduction hearing aid device |
| 566 |
4,773,095 |
Hearing aid with locating microphones
|
| 567 |
4,771,859 |
Hearing aid apparatus |
| 568 |
4,759,070 |
Patient controlled master hearing
aid |
| 569 |
4,756,312 |
Magnetic attachment device for insertion
and removal of hearing aid |
| 570 |
4,751,738 |
Directional hearing aid |
| 571 |
4,750,207 |
Hearing aid noise suppression system
|
| 572 |
4,739,512 |
Hearing aid |
| 573 |
4,739,511 |
Hearing aid |
| 574 |
4,736,430 |
Hearing aid |
| 575 |
4,735,759 |
Method of making a hearing aid |
| 577 |
4,731,850 |
Programmable digital hearing aid
system |
| 578 |
4,729,366 |
Implantable hearing aid and method
of improving hearing |
| 579 |
4,727,582 |
Hearing aid with adjustable flexible
connection member |
| 580 |
4,723,293 |
Hearing aid apparatus |
| 581 |
4,718,099 |
Automatic gain control for hearing
aid |
| 582 |
4,716,985 |
In-the-ear hearing aid |
| 583 |
4,712,245 |
In-the-ear hearing aid with the
outer wall formed by rupturing a two-component chamber |
| 584 |
4,711,243 |
Cortical hearing aid |
| 585 |
4,710,961 |
Miniature hearing aid having a bindable
multi-layered amplifier arrangement |
| 586 |
4,706,778 |
In-the-ear-canal hearing aid |
| 587 |
4,702,345 |
Hearing aid retention device |
| 588 |
4,689,820 |
Hearing aid responsive to signals
inside and outside of the audio frequency range |
| 589 |
4,689,819 |
Class D hearing aid amplifier |
| 590 |
4,680,799 |
Hearing aid |
| 591 |
4,680,798 |
Audio signal processing circuit
for use in a hearing aid and method for operating same |
| 592 |
4,679,650 |
Hearing aid ear mold end piece for
the auditory canal and hearing aid ear mold |
| 593 |
4,679,240 |
Touch sensitive hearing aid volume
control circuit |
| 595 |
4,672,672 |
Miniature hearing aid |
| 596 |
4,657,106 |
"Ear" hearing aid |
| 598 |
4,652,414 |
Process for manufacturing an ear
fitted acoustical hearing aid |
| 599 |
4,639,556 |
Hearing aid with a flexible printed
circuit board |
| 600 |
4,638,125 |
Hearing aid with a housing to be
worn behind the ear |
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