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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 6101
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 271
 
  
 
B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL 163
 
  
 
G10K SOUND-PRODUCING DEVICES 134
 
  
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 162

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0345,101 INERTIAL ELECTROACOUSTIC TRANSDUCER UNITMay 16, 16Nov 24, 16[H04R]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9924274 Inertial electroacoustic transducer unitMay 16, 16Mar 20, 18[H04R]
9686611 Engine sound enhancement system of a vehicleJan 04, 16Jun 20, 17[G10K, H04R, B60Q]
9508337 Low-noise fume extractor hoodMay 17, 13Nov 29, 16[G10K, H03B, H04R, F01N]
8811650 Ribbon transducer provided with dynamic tensioning systemMar 02, 12Aug 19, 14[H04R]
8792671 Shaker-type transducer with centering deviceSep 02, 10Jul 29, 14[H04R]
8442260 Ribbon transducerOct 20, 10May 14, 13[H04R]
8365861 Muffler unit for fume extractor hoodFeb 17, 10Feb 05, 13[F01N]

Expired/Abandoned/Withdrawn Patents

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