NOISE CANCELLATION TECHNOLOGIES, INC.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G10K SOUND-PRODUCING DEVICES 431
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION356
 
  
 
A61F FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS 2138
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 1239
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 172
 
  
 
F16M FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS134
 
  
 
G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES 120
 
  
 
G06G ANALOGUE COMPUTERS 152
 
  
 
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
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6118878 Variable gain active noise canceling system with improved residual noise sensingNov 05, 97Sep 12, 00[A61F, H03B]
5719945 Active foam for noise and vibration controlDec 07, 95Feb 17, 98[A61F]
5418857 Active control system for noise shapingSep 28, 93May 23, 95[G10K]
5375174 Remote siren headsetJul 28, 93Dec 20, 94[G10K]
5365594 Active sound and/or vibration controlNov 10, 92Nov 15, 94[G10K]
5348124 Active control of vibrationDec 17, 91Sep 20, 94[F16F]
5332203 Dual chambered, active vibration damper with reactive force producing pistonsMar 08, 93Jul 26, 94[F16M, F16F]
5313945 Active attenuation system for medical patientsJun 11, 90May 24, 94[A61B]
5315661 Active high transmission loss panelAug 12, 92May 24, 94[G10K]
5311446 Signal processing system for sensing a periodic signal in the presence of another interfering signalJul 08, 92May 10, 94[G01H, G06G]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6259224 Electronic cancellation of DC motor noiseExpiredOct 18, 96Jul 10, 01[G05B]
6142254 Decorative speaker coverExpiredJan 06, 99Nov 07, 00[A47B]
5841876 Hybrid analog/digital vibration control systemExpiredNov 15, 96Nov 24, 98[A61F]
5815582 Active plus selective headsetExpiredJul 23, 97Sep 29, 98[A61F, H03B]
5812682 Active vibration control system with multiple inputsExpiredFeb 06, 96Sep 22, 98[H04R]
5790673 Active acoustical controlled enclosureExpiredApr 09, 97Aug 04, 98[A61F, H03B]
5748749 Active noise cancelling mufflerExpiredJun 25, 96May 05, 98[A61F, H03B]
5745581 Tracking filter for periodic signalsExpiredJul 26, 96Apr 28, 98[A61F]
5699436 Hands free noise canceling headsetExpiredOct 27, 94Dec 16, 97[G10K]
5692053 Active acoustic transmission loss boxExpiredJul 07, 95Nov 25, 97[G10K]
5676353 Hydraulic lever actuatorExpiredNov 01, 94Oct 14, 97[H04R, F15B, F16F]
5652799 Noise reducing systemExpiredApr 22, 96Jul 29, 97[G10K]
5649018 Hybrid analog/digital vibration controlExpiredJan 30, 95Jul 15, 97[A61F, H03B]
5638454 Noise reduction systemExpiredMay 26, 94Jun 10, 97[A61F]
5619020 MufflerExpiredFeb 09, 96Apr 08, 97[F01N]
5617479 Global quieting system for stationary induction apparatusExpiredDec 12, 95Apr 01, 97[G10K]
5600106 Actively sound reduced muffler having a venturi effect configurationExpiredMay 15, 96Feb 04, 97[F01N]
5568557 Active vibration control system for aircraftExpiredJul 29, 94Oct 22, 96[A61F, H03B]
5563817 Adaptive canceller filter moduleExpiredJan 13, 95Oct 08, 96[G06F]
5553153 Method and system for on-line system identificationExpiredFeb 10, 93Sep 03, 96[A61F]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.