| Patents for G10K 11 - Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general (21,150) |
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| 03/11/1992 | EP0473959A2 Method of transforming a multi-beam sonar image |
| 03/11/1992 | EP0402410A4 Ultrasound localization and therapy system |
| 03/10/1992 | US5095506 Sound reproduction system utilizing sound extinction device |
| 03/10/1992 | US5094317 Two-piece megaphone with ornamental member |
| 03/10/1992 | US5094243 Support for an echographic transducer, in particular an echocardiographic transducer |
| 03/10/1992 | US5094108 Ultrasonic contact transducer for point-focussing surface waves |
| 03/04/1992 | EP0473095A2 Hybrid sound attenuator |
| 03/03/1992 | US5093864 Silencer |
| 03/03/1992 | US5093810 Transducer |
| 03/03/1992 | US5092336 Method and device for localization and focusing of acoustic waves in tissues |
| 03/03/1992 | CA1296651C Sound attenuation system for personal seat |
| 03/03/1992 | CA1296650C Active acoustic attenuation system with differential filtering |
| 03/03/1992 | CA1296649C Active acoustic attenuation system for higher order mode non-uniform sound field in a duct |
| 02/28/1992 | CA2049827A1 Fiber core materials used for board |
| 02/27/1992 | DE4126098A1 Acoustic transducer coupler for waveguide - has sound transmitting, threaded circular holder retained by sprung bowed clip |
| 02/26/1992 | EP0268633B1 Ultrasonic field generation |
| 02/25/1992 | US5091954 Noise reducing receiver device |
| 02/25/1992 | US5091953 Repetitive phenomena cancellation arrangement with multiple sensors and actuators |
| 02/25/1992 | US5091894 Suspension device for acoustic base |
| 02/25/1992 | US5091892 Expandable sonar array structure |
| 02/25/1992 | US5090414 Intracavitary ultrasound probe |
| 02/25/1992 | US5090294 Pneumatic booster with tubular portion for separately directing air to silencers |
| 02/20/1992 | WO1992002180A1 Endoscopic probe |
| 02/20/1992 | WO1992002179A1 Endoscopic probe |
| 02/20/1992 | WO1992002178A1 Endoscopic probe |
| 02/19/1992 | EP0471290A2 Active adaptive noise canceller without training mode |
| 02/18/1992 | US5089996 Transducer device for acoustic log |
| 02/18/1992 | US5089988 Method and apparatus for compensating sensitivity fluctuations in a hydrophone transducer array |
| 02/18/1992 | US5088576 Mass and spring systems for soundproofing |
| 02/18/1992 | US5088575 Acoustic system with transducer and venturi |
| 02/18/1992 | US5088496 Ultrasonic echography apparatus utilizing a digital device for forming channels, in the receiving mode |
| 02/18/1992 | US5088495 Mechanical ultrasonic scanner |
| 02/12/1992 | EP0470656A1 Method and apparatus for attenuating engine noise |
| 02/12/1992 | EP0470153A1 Active sound and/or vibration control. |
| 02/11/1992 | US5088068 Hand-held underwater distance measurement device |
| 02/11/1992 | US5088067 Water-activated sonobuoy system |
| 02/06/1992 | WO1992001599A1 Anechoic coating, particularly for boat or submarine hulls |
| 02/06/1992 | WO1992001587A1 Sound-absorbing lining for vehicles |
| 02/05/1992 | EP0469242A2 Circuit arrangement for pulse emission of sound waves |
| 02/05/1992 | EP0469023A1 Sound synthesizer in a vehicle. |
| 02/04/1992 | US5085221 Ultrasonic imaging probe |
| 01/29/1992 | EP0468627A2 Method for bonding together hollow glass spheres |
| 01/29/1992 | EP0468610A2 Method and apparatus for performing noise cancelling in headphones |
| 01/28/1992 | US5084846 Deep submergence hydrophone |
| 01/28/1992 | US5083568 Ultrasound diagnosing device |
| 01/28/1992 | CA2047855A1 Method and apparatus for performing noise cancelling and headphoning |
| 01/28/1992 | CA1295043C Method for acoustic reverberation removal |
| 01/23/1992 | WO1992001169A1 Silencer for disc and drum brakes |
| 01/23/1992 | DE4122590A1 Pressure pulse generator with variable focus - contains focussing and defocussing arrangements for reduced peak pressure |
| 01/22/1992 | EP0467690A2 Ultrasonic imaging by radial scan of trapezoidal sector |
| 01/21/1992 | US5081995 Ultrasonic nondiffracting transducer |
| 01/15/1992 | CN1057849A Anti-burning and damping paint for forming restrained damping structure |
| 01/14/1992 | US5079952 Ultrasonic transducer assembly and ultrasonic acoustic microscope |
| 01/10/1992 | WO1992000874A1 Device for absorbing sound energy originating inside the hull of a vessel, and modular acoustic baffle forming a part thereof |
| 01/10/1992 | CA2066241A1 Device for absorbing sound energy originating inside the hull of a vessel, and modular acoustic baffle forming a part thereof |
| 01/09/1992 | WO1992000584A1 Method and apparatus for acoustic holographic imaging in marine and other acoustic remote sensing equipment |
| 01/09/1992 | DE4021567A1 Noise damper for disc or drum brake - incorporates spring-loaded metal element pressing in one spot |
| 01/08/1992 | EP0465174A2 Adaptive active noise cancellation apparatus |
| 01/08/1992 | EP0464440A2 Multifocal ultrasound imaging system |
| 01/08/1992 | EP0464220A1 Earphone device |
| 01/08/1992 | EP0464130A1 Apparatus for comminuting concretions in the body of a patient |
| 01/07/1992 | US5079752 Platform mounted ultrasonic sweep detection system |
| 01/07/1992 | US5078149 Ultrasonic coupler and method for production thereof |
| 01/07/1992 | US5078145 Ultrasonic diagnostic device |
| 01/07/1992 | US5078013 Ultrasonic measuring apparatus using a high-damping probe |
| 01/02/1992 | DE4119092A1 Shock wave generator breaking up internal concretions - incorporates device to remove gas bubbles from coupling unit |
| 01/02/1992 | DE4019774A1 Cassette for noise protection - is filled with pneumatically compressed fibre material |
| 12/31/1991 | CA1293796C Boresonic inspection system |
| 12/29/1991 | WO1992000183A1 A composite structural component |
| 12/26/1991 | WO1991019458A1 Ultrasonic imaging probe |
| 12/25/1991 | CN1015192B Method and apparatus for airflow noise-elimination |
| 12/24/1991 | US5075680 Method and apparatus for monitoring vehicular traffic |
| 12/18/1991 | EP0461801A2 Noise suppressor circuit for audio equipment |
| 12/18/1991 | EP0461215A1 Noise-damping combination. |
| 12/18/1991 | EP0452370A4 Viscoelastic damping system |
| 12/17/1991 | US5072735 Ultrasonic imaging apparatus |
| 12/12/1991 | WO1991019287A1 Acoustic absorber |
| 12/11/1991 | EP0460711A2 Ultrasonic probe |
| 12/11/1991 | EP0460392A1 Process for making foamed metal bodies |
| 12/11/1991 | EP0460246A1 Window for acoustic wave form and method for making |
| 12/10/1991 | US5070881 Ultrasound apparatus for determining whether a female large animal is gravid |
| 12/10/1991 | US5070879 Ultrasound imaging method and apparatus |
| 12/03/1991 | US5069011 Portable acoustical panel structure |
| 11/28/1991 | WO1991018486A1 A coupling device |
| 11/27/1991 | EP0458146A2 Ultrasonic transducer with reduced acoustic cross coupling |
| 11/27/1991 | EP0458092A2 Curved array ultrasonic transducer assembly and its method of manufacture |
| 11/26/1991 | US5068902 Method and apparatus for reducing acoustical distortion |
| 11/26/1991 | US5068018 Electrophoretic fluid composite structure |
| 11/26/1991 | US5068001 Method of making a sound absorbing laminate |
| 11/21/1991 | EP0457467A2 Acoustic transducers |
| 11/21/1991 | EP0457384A1 Apparatus for carrying mobile means of inspection in the interior of a tubular body |
| 11/21/1991 | EP0457176A2 Active noise reduction system for the interior of motor vehicles |
| 11/21/1991 | EP0436685A4 An acoustic liner |
| 11/21/1991 | DE4015710A1 Non-electric sound amplifier - is in form of half dome and is constructed from rigid panels and support bars |
| 11/20/1991 | CN1056267A Ultrasonic transducer |
| 11/19/1991 | WO1991018384A1 Tuned port rigid baffle panel for drum type percussion instruments |
| 11/14/1991 | WO1991017637A1 Ultrasonic transducer |
| 11/14/1991 | DE4015169A1 Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between |
| 11/14/1991 | CA2081472A1 Ultrasonic transducer |
| 11/13/1991 | EP0456499A2 Noise cancellation |