US1742832A
(en)
*
|
1926-12-29 |
1930-01-07 |
Adolph A Thomas |
Electric sound-reproducing apparatus
|
US2070977A
(en)
*
|
1935-06-04 |
1937-02-16 |
Magnavox Co |
Sound reproducer
|
US2091011A
(en)
*
|
1935-08-26 |
1937-08-24 |
Reconstruction Finance Corp |
Sound reproducer
|
US2231479A
(en)
*
|
1938-08-24 |
1941-02-11 |
Rca Corp |
Signal translating apparatus
|
US2496589A
(en)
*
|
1945-05-08 |
1950-02-07 |
Operadio Mfg Co |
Double diaphragm loud-speaker
|
US2753009A
(en)
*
|
1955-02-21 |
1956-07-03 |
Shaffer Music Company |
Built-in sound system for home
|
US2819773A
(en)
*
|
1955-05-23 |
1958-01-14 |
Benjamin W Lowell |
High frequency speaker baffle
|
US3240882A
(en)
*
|
1962-01-31 |
1966-03-15 |
Gen Electric |
Permanent magnet type loudspeakers
|
US3201529A
(en)
*
|
1962-11-16 |
1965-08-17 |
Philip C Surh |
Dynamic speaker
|
US3230319A
(en)
*
|
1963-05-24 |
1966-01-18 |
Plastic Mold & Engineering Co |
Dynamic ear phone
|
US3188374A
(en)
*
|
1963-07-18 |
1965-06-08 |
Westinghouse Electric Corp |
Loudspeaker assembly
|
US3581015A
(en)
*
|
1966-12-28 |
1971-05-25 |
Aiwa Co |
Dynamic microphone
|
USD250586S
(en)
*
|
1976-04-15 |
1978-12-19 |
Altec Corporation |
Loudspeaker
|
US4220832A
(en)
*
|
1976-12-02 |
1980-09-02 |
Tenna Corporation |
Two-way speaker with transformer-coupled split coil
|
JPS5851514Y2
(en)
*
|
1979-01-10 |
1983-11-24 |
松下電工株式会社 |
Variable direction mounting device
|
US4439643A
(en)
*
|
1979-04-02 |
1984-03-27 |
Rene Schweizer |
System assembly for mounting electrical apparatus on walls and ceilings
|
US4277653A
(en)
*
|
1979-04-30 |
1981-07-07 |
Pawelzick George K |
Speaker adapter
|
JPS55150699A
(en)
*
|
1979-05-15 |
1980-11-22 |
Kenkichi Tsukamoto |
Speaker
|
USD270909S
(en)
*
|
1980-11-08 |
1983-10-11 |
Pioneer Kabushiki Kaisha |
Loudspeaker
|
DE3147145C2
(en)
*
|
1981-11-27 |
1983-10-13 |
Siemens AG, 1000 Berlin und 8000 München |
Method for generating a speed-proportional voltage and circuit arrangement for carrying out the method
|
US4492826A
(en)
*
|
1982-08-10 |
1985-01-08 |
R&C Chiu International, Inc. |
Loudspeaker
|
JPS59164390U
(en)
*
|
1983-04-15 |
1984-11-05 |
株式会社 双信音響製作所 |
Coaxial composite speaker
|
US4554414A
(en)
*
|
1983-04-28 |
1985-11-19 |
Harman International Industries Incorporated |
Multi-driver loudspeaker
|
USD289041S
(en)
*
|
1984-07-13 |
1987-03-31 |
Eletro-Acustica S.A. |
Tweeter
|
US5193119A
(en)
*
|
1985-09-02 |
1993-03-09 |
Franco Tontini |
Multiple loudspeaker
|
DE3541493A1
(en)
*
|
1985-11-23 |
1987-06-04 |
Philips Patentverwaltung |
DEVICE FOR INSTALLING A LOUDSPEAKER IN A PART OF A BALL
|
JPS647485U
(en)
*
|
1987-06-30 |
1989-01-17 |
|
|
US4853966A
(en)
*
|
1987-10-29 |
1989-08-01 |
Skrzycki Gary E |
Speaker mounting system
|
USD320020S
(en)
*
|
1989-05-23 |
1991-09-17 |
Kabushiki Kaisha Seidenko |
Speaker
|
DE3929266C1
(en)
*
|
1989-09-02 |
1991-01-03 |
Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De |
|
US5153915A
(en)
*
|
1990-05-18 |
1992-10-06 |
Creative Acoustics, Inc. |
Speaker filtering circuit and support therefor
|
DE9109452U1
(en)
*
|
1991-07-31 |
1991-10-17 |
Nokia Unterhaltungselektronik (Deutschland) GmbH, 7530 Pforzheim |
Cone speaker
|
AT400911B
(en)
*
|
1993-03-04 |
1996-04-25 |
Koninkl Philips Electronics Nv |
ELECTROACOUSTIC TRANSFORMER WITH A PARTITION AND MASK WALL
|
US5625701A
(en)
*
|
1993-08-05 |
1997-04-29 |
Bose Corporation |
Loudspeaker diaphragm attaching
|
US5319164A
(en)
*
|
1993-11-09 |
1994-06-07 |
A - Sonic Electrics Co. Ltd. |
Speaker holder
|
US5512714A
(en)
*
|
1994-06-23 |
1996-04-30 |
Fenton; Robert |
Composite speaker system having a directional adjustable tweeter
|
USD360886S
(en)
*
|
1994-09-02 |
1995-08-01 |
Velodyne Acoustics, Inc. |
Loudspeaker
|
US5739480A
(en)
*
|
1996-09-24 |
1998-04-14 |
Lin; Steff |
Speaker base for alternatively mounting different drivers
|
USD393641S
(en)
*
|
1996-12-31 |
1998-04-21 |
Wu Hai-Fu |
Speaker
|
USD400884S
(en)
*
|
1997-01-09 |
1998-11-10 |
Christie Ii Cary |
Speaker assembly
|
US6095278A
(en)
*
|
1999-04-28 |
2000-08-01 |
Lin; Steff |
Base for holding the tweeter of a speaker
|
US6393132B1
(en)
*
|
2000-01-18 |
2002-05-21 |
Jih Yo Electronic Co., Ltd. |
Speaker
|
USD432118S
(en)
*
|
2000-01-19 |
2000-10-17 |
Syntronic Instruments, Inc. |
Loudspeaker
|
US6516076B1
(en)
*
|
2000-07-12 |
2003-02-04 |
Atlas Sound, L.P. |
Modular horn loudspeaker
|
US6792125B1
(en)
*
|
2000-08-23 |
2004-09-14 |
Boston Acoustics, Inc. |
Pivotable speaker mounting apparatus
|
US6647124B1
(en)
*
|
2002-05-06 |
2003-11-11 |
Meiloon Industrial Co., Ltd. |
Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound
|
USD480709S1
(en)
*
|
2002-06-03 |
2003-10-14 |
Jl Audio, Inc. |
Loudspeaker
|
USD510084S1
(en)
*
|
2004-01-06 |
2005-09-27 |
Phoenix Gold International, Inc. |
Speaker
|
JP2005277874A
(en)
*
|
2004-03-25 |
2005-10-06 |
Pioneer Electronic Corp |
Coaxial speaker device and manufacturing method thereof
|
USD529899S1
(en)
*
|
2004-09-24 |
2006-10-10 |
Matsushita Electric Industrial Co., Ltd. |
Speaker for an automobile
|
USD521982S1
(en)
*
|
2004-12-28 |
2006-05-30 |
Schafernak Randolph J |
Speaker
|
JP2007060628A
(en)
*
|
2005-07-27 |
2007-03-08 |
Victor Co Of Japan Ltd |
Production method of acoustic diaphragm, acoustic diaphragm, and speaker
|
USD560658S1
(en)
*
|
2006-06-29 |
2008-01-29 |
Pioneer Kabushiki Kaisha |
Loudspeaker
|
US8175320B2
(en)
*
|
2007-06-27 |
2012-05-08 |
Sound Sources Technology, Inc. |
Single magnet coaxial loudspeaker
|
USD593073S1
(en)
*
|
2008-03-05 |
2009-05-26 |
Sony Corporation |
Speaker
|
CN101938681A
(en)
*
|
2010-09-10 |
2011-01-05 |
鸿富锦精密工业(深圳)有限公司 |
Speaker with audio cavity
|
USD705193S1
(en)
*
|
2012-10-15 |
2014-05-20 |
Yoon Tone |
Sound wave guide system for loudspeaker
|
USD723010S1
(en)
*
|
2013-03-19 |
2015-02-24 |
Samsung Electronics Co., Ltd. |
Audio speaker
|
US9036839B2
(en)
*
|
2013-06-05 |
2015-05-19 |
Harman International Industries, Inc. |
Multi-way coaxial loudspeaker with magnetic cylinder
|
US9253576B2
(en)
*
|
2013-11-21 |
2016-02-02 |
Bose Corporation |
Suspension for acoustic device
|
JP1518778S
(en)
|
2014-07-22 |
2015-03-09 |
|
|
JP1541116S
(en)
*
|
2015-07-22 |
2016-01-12 |
|
|
JP1574944S
(en)
*
|
2016-06-24 |
2017-05-01 |
|
|
JP1613655S
(en)
*
|
2017-10-17 |
2018-09-18 |
|
|