E01F8/0047 - CPC Classification Index

ClassID:

127939 ⎘

E01F8/0047 - CPC Classification

Classification description:

Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads

Sub-classes:

E01F8/0052 » {Grate-style, e.g. as wall facing} 2
E01F8/0064 » {Perforated plate or mesh, e.g. as wall facing} 6
E01F8/0076 » {Cellular, e.g. as wall facing} 6

Recent Application in this class:

20220341107

2022-10-27

Sound absorber

20220098806

2022-03-31

Sound absorbing structure having one or more acoustic scatterers for improved sound transmission loss

20130180799

2013-07-18

Supporting structure for an anti-noise barrier wherein foundations and lifting post are realized in a single element and relative assembly method