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Class Information
Number: 181/286
Name: Acoustics > Sound-modifying means > Sound absorbing panels > Specific acoustical properties or dimensions
Description: Subject matter whose composition, size or shape is related to a particular type of acoustic wave attenuation, e.g., insertion loss, transmission loss, or specific acoustic structure (Helmholtz resonator, 1/4 wavelength chamber depth).










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8689934 Sound absorbing structure Apr. 8, 2014
8684133 Acoustically damped component Apr. 1, 2014
8684135 Sound barriers made from scrap and waste materials Apr. 1, 2014
8678133 Sound attenuating laminate materials Mar. 25, 2014
8654309 Fluid extraction system, lithographic apparatus and device manufacturing method Feb. 18, 2014
8636104 Acoustically absorptive panel Jan. 28, 2014
8631899 Sound absorber Jan. 21, 2014
8616331 Panel assembly for traffic noise barrier wall Dec. 31, 2013
8607929 Acoustically tunable sound absorption articles and methods of making same Dec. 17, 2013
8607921 Hearing protection process and device Dec. 17, 2013
8590670 Sound proof membrane Nov. 26, 2013
8579080 Anti-noise panel Nov. 12, 2013
8573358 Multilayer sound absorbing structure comprising mesh layer Nov. 5, 2013
8556029 Noise and vibration mitigating mat Oct. 15, 2013
8496446 Compressor muffler Jul. 30, 2013
8474198 Sound insulating glazing device, in particular for aircraft and soundproofing method for glazing Jul. 2, 2013
8453793 Accoustic fabrication system Jun. 4, 2013
8448744 Soundproofing device for the passenger compartment of a vehicle, in particular of an automobile May. 28, 2013
8439161 Acoustically tunable sound absorption articles May. 14, 2013
8439160 Acoustic suppression systems and related methods May. 14, 2013
8424251 Sound Proofing material with improved damping and structural integrity Apr. 23, 2013
8403108 Acoustically tunable sound absorption articles and methods of making same Mar. 26, 2013
8393438 Sound absorbing material, multilayer sound absorbing material, molded product of multilayer sound absorbing material, sound absorbing interior material, and sound absorbing floor covering mate Mar. 12, 2013
8381872 Acoustic composite Feb. 26, 2013
8371084 Suspended ceiling structure and layer-core-layer acoustic ceiling panel therefor Feb. 12, 2013
8360201 Sound absorbing structure and sound chamber Jan. 29, 2013
8337976 Abuse-resistant cast acoustical ceiling tile having an excellent sound absorption value Dec. 25, 2012
8307950 Sound barrier wall Nov. 13, 2012
8276709 Transportation vehicle sound insulation process and device Oct. 2, 2012
8276708 Headliners and vehicles with improved speech transmission characteristics Oct. 2, 2012
8276711 Sound barrier wall Oct. 2, 2012
8243258 Lithographic apparatus having acoustic resonator Aug. 14, 2012
8230970 Sound barrier wall Jul. 31, 2012
8215451 Impact and sound absorbing material and sound absorbing structure Jul. 10, 2012
8210310 Tunable acoustical plaster system and method of making it Jul. 3, 2012
8191678 Apparatus for absorbing acoustical energy and use thereof Jun. 5, 2012
8167085 Non-combustible sound-absorbing facing May. 1, 2012
8157051 Moulded soundproofing component, and manufacturing method thereof Apr. 17, 2012
8151933 Thermally and acoustically insulative vehicle flooring Apr. 10, 2012
8136630 Architectural acoustic device Mar. 20, 2012
8118177 Non-woven webs and methods of manufacturing the same Feb. 21, 2012
8109361 Solid-borne sound reducing structure Feb. 7, 2012
8100226 Porous nonwoven scrims in acoustical panels Jan. 24, 2012
8091685 Sound absorbing structure built into luggage compartment of vehicle Jan. 10, 2012
8091684 Low mass acoustically enhanced floor carpet system Jan. 10, 2012
8091680 Acoustic resistor for hearing improvement and audiometric applications, and method of making same Jan. 10, 2012
8066097 Acoustic enhancement device for underlayment of a covering Nov. 29, 2011
8061475 Soundproof cover and method for producing the same Nov. 22, 2011
8033360 Interlayer film for laminated glass and laminated glass Oct. 11, 2011
8028799 Damping device and method for damping sound in cavities of vehicles Oct. 4, 2011

1 2 3 4 5 6 7 8 9










 
 
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