SOUND CHEERS LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 5102
 
 
 
B01D SEPARATION 1133
 
 
 
B06B GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL 123
 
 
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
 
 
H02N ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR130
 
 
 
H03G CONTROL OF AMPLIFICATION 151

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8295510 Power-saving amplifying deviceMar 16, 10Oct 23, 12[H04R, H03F, H03G]
7088837 High efficiency planar magnetic transducer with angled magnet structureAug 14, 03Aug 08, 06[H04R]
D460440 Planar magnetic transducerSep 29, 00Jul 16, 02[1401]
D449829 Audio speakerSep 29, 00Oct 30, 01[1401]
6097830 Transducer diaphragm with thermal strain reliefNov 17, 97Aug 01, 00[H04R]
D421263 Planar magnetic transducerSep 02, 98Feb 29, 00[1401]
D416559 Speaker volume control moduleSep 02, 98Nov 16, 99[1499]
D416259 Planar magnetic speaker housingSep 02, 98Nov 09, 99[1401]
5961762 Method and assembly for manufacturing acoustic transducersApr 29, 98Oct 05, 99[H04R]
D414771 WooferSep 02, 98Oct 05, 99[1401]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6975835 Method and apparatus for an interactive Web Radio system that broadcasts a digital markup languageExpiredSep 07, 99Dec 13, 05[H04Q]
6286063 Microprocessor-controlled broadcast receiver embedded in an external peripheral with digital communications interface for bi-directional communication with a computer remotely locatedExpiredJun 08, 98Sep 04, 01[G06F]
6154557 Acoustic transducer with selective driving force distributionExpiredMay 21, 98Nov 28, 00[H04R]
5682075 Porous gas reservoir electrostatic transducerExpiredSep 07, 95Oct 28, 97[H02N]
5450498 High pressure low impedance electrostatic transducerExpiredJul 14, 93Sep 12, 95[H04R]
4885783 Elastomer membrane enhanced electrostatic transducerExpiredApr 10, 87Dec 05, 89[H04R]

Top Inventors for This Owner

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