RED LION 49 LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03G CONTROL OF AMPLIFICATION 844
 
  
 
H03F AMPLIFIERS 479
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 4103
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
H04H BROADCAST COMMUNICATION 253
 
  
 
G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY 131
 
  
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 196
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9722716 Rotary control deviceMar 10, 15Aug 01, 17[G06F, G05G, H04H, H01H]
9723404 Digital low pass filterAug 24, 16Aug 01, 17[H04R, G06F]
9723405 Attenuating an input signalAug 24, 16Aug 01, 17[H04R, H03F, H03H, H03G]
9257951 Differential amplifierMay 10, 13Feb 09, 16[H03F, H03G]
9154100 EqualizerNov 26, 13Oct 06, 15[H03G]
8917886 Method of distortion-free signal compressionMay 05, 12Dec 23, 14[H04S, G10L]
8666093 Processing an audio input signal to produce a processed audio output signalDec 07, 11Mar 04, 14[H04R, H03G]
8311242 Amplifying an audio signalAug 23, 06Nov 13, 12[H04R, H03F]
8204255 Method of distortion-free signal compressionNov 04, 08Jun 19, 12[H03G]
8094837 Processing an audio input signal to produce a processed audio output signalDec 13, 06Jan 10, 12[H04R, H03G]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0303,761 Real Time Digital Signal ProcessingAbandonedMar 27, 14Oct 09, 14[G06F]

Top Inventors for This Owner

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