| Patents for E04F 17 - Vertical ducts; Channels, e.g. for drainage (3,992) |
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| 02/26/2013 | US8381871 Compact low frequency resonator |
| 02/21/2013 | WO2013023266A1 Environmentally friendly indoor chimney |
| 02/20/2013 | CN202746700U Fire-proof, reverse smoke prevention and variable pressure check valve |
| 02/20/2013 | CN202745337U Ventilation exhaust pipeline for buildings |
| 02/20/2013 | CN202745336U Energy-consumption-free ventilating system |
| 02/19/2013 | US8375664 Flood vent |
| 02/15/2013 | DE202011107737U1 Schornsteinklemmband Chimney clamping band |
| 02/14/2013 | US20130036691 Subterranean chamber waterproofing system |
| 02/14/2013 | DE102011110091A1 Protective guard for use as e.g. cellar light well cover, has frame comprising hollow profile strip with profile rear side, and rectangular grid self-lockingly fixed by form-stable clamping strip that exhibits V-shaped cross-section |
| 02/13/2013 | CN202731239U Garbage pipeline used for cleaning building floor garbage in construction |
| 02/13/2013 | CN202731238U Ventilated sleeve structure |
| 02/13/2013 | CN202731237U Building ventilating shaft for both fresh air and exhaust air and with sensible heat recovering function |
| 02/13/2013 | CN202731236U Improved sheet metal air conduit |
| 02/13/2013 | CN202731235U Adjustable pressure-changing anti-seepage gas flue |
| 02/13/2013 | CN202731234U Building smoke shaft |
| 02/13/2013 | CN102926526A Red mud smoke exhaustion air flue, production method thereof and special mould |
| 02/13/2013 | CN102926525A Fireproof environment-friendly flue and manufacturing process thereof |
| 02/12/2013 | US8371073 Building with integrated natural systems |
| 02/05/2013 | US8365486 Multi-layered building wall |
| 01/30/2013 | CN202706484U Anti-creep cover for pipeline between windows of storied house |
| 01/30/2013 | CN202706483U Glass fiber and magnesium flue |
| 01/30/2013 | CN202706482U Extrusion type machine-made fireproof air vent |
| 01/30/2013 | CN202706481U Variable-pressure tainting preventing gas flue for high-rise building |
| 01/30/2013 | CN202706480U Fire protection exhaust passage for house |
| 01/30/2013 | CN202706479U Quick fixture |
| 01/30/2013 | CN102900128A System and method for conveying organic waste |
| 01/29/2013 | CA2481493C Heated plumbing vent |
| 01/23/2013 | CN202689472U Ventilating duct |
| 01/23/2013 | CN202689471U Storied house variable-pressure type high-rise upper-layer and lower-layer exhaust duct |
| 01/23/2013 | CN202689470U Fire-proof oil-fume extraction pipe structure of resident kitchen |
| 01/17/2013 | WO2013010068A2 High efficiency scalable structure |
| 01/17/2013 | US20130014459 Constructional Building Material |
| 01/16/2013 | CN202672656U Building automation refuse sorting and collecting device |
| 01/16/2013 | CN202672655U Garbage cleaning-up device |
| 01/16/2013 | CN202672654U Garbage classification collecting system |
| 01/16/2013 | CN202672653U Anti-climbing hood of pipeline at building corner |
| 01/16/2013 | CN202672652U Corrosion-resistant vent pipe |
| 01/16/2013 | CN202672651U Positioning connector of exhaust pipes |
| 01/16/2013 | CN202672650U Halogen-free environment-friendly magnesium oxide-magnesium sulfate non-ignitable fire-resistant air pipe |
| 01/16/2013 | CN102877632A Novel dirty cloth tank with buffering device |
| 01/09/2013 | CN202658856U Combined type exhaust flue |
| 01/09/2013 | CN202658855U Prefabricated concrete thin wall smoke discharge flue |
| 01/09/2013 | CN202658854U Ventilation and aeration pipeline system of building |
| 01/09/2013 | CN102864915A Construction method for venue large space double-helix air pipes |
| 01/09/2013 | CN102864914A Residential kitchen and bathroom exhaust air duct mounting and construction method |
| 01/09/2013 | CN102864913A Variable pressure jet type house exhaust passage system |
| 01/09/2013 | CN102864912A Non-nail connection combined fire-proof exhaust duct and producing method thereof |
| 01/08/2013 | US8347558 Under deck drainage system and related method |
| 01/08/2013 | US8347424 Leveling mechanism for floor drain |
| 01/03/2013 | DE102011051484A1 Lichtschachtaufstockelement Light shaft extension element |
| 01/02/2013 | EP2540931A2 Extension element for a light shaft |
| 01/02/2013 | CN202645116U Environment-based energy-saving prototype house building |
| 01/02/2013 | CN202644944U Air-drawing wind-exhausting cap |
| 01/02/2013 | CN202644943U Air exhausting device for gas film building |
| 01/02/2013 | CN202644942U Multilevel jet flow vent valve |
| 01/02/2013 | CN202644941U Novel resident fire-protection type exhaust passage |
| 01/02/2013 | CN202644940U Odor discharge resistance flue pre-fabricated member |
| 01/02/2013 | CN202644939U Combined air-exhausting smoke channel |
| 01/02/2013 | CN202644938U A thin wall component and a common exhaust duct |
| 01/02/2013 | CN202644937U Pipeline coating and shielding equipment for building decoration |
| 01/02/2013 | CN102852323A Automatic-control garbage classifying device for building |
| 01/02/2013 | CN102852322A Device of intensive pipe well of solar hot water pipeline |
| 01/02/2013 | CN102852321A Smoke backflow preventing device for flue |
| 01/02/2013 | CN102162297B Adjustable fireproof exhaust passage device |
| 12/26/2012 | CN202627445U Water supply, water drainage and circuit combined passage for buildings |
| 12/26/2012 | CN202627444U Combined-type smoke exhaust pipeline |
| 12/25/2012 | US8336672 Air treatment and sound reduction system |
| 12/25/2012 | US8336268 Floor drainage system for a building and assembly therefor |
| 12/19/2012 | CN202611202U Exhaust pipeline for buildings |
| 12/19/2012 | CN202611201U Exhaust pipeline for buildings |
| 12/19/2012 | CN202611200U An integrated grille-type ventilation and smoke discharge port air opening structure with a frame and blades formed through stamping |
| 12/19/2012 | CN202611199U Fireproof non-return exhaust valve |
| 12/19/2012 | CN102828606A Building garbage collecting facility |
| 12/18/2012 | US8333044 Floor panel and flooring drainage system |
| 12/18/2012 | US8333043 Apparatus for thermally hygrometrically processing air, particularly for classified environments for food preparing processes |
| 12/12/2012 | CN202597747U Flue gas flow regulating valve and flue with same |
| 12/12/2012 | CN202596124U Flue machine |
| 12/12/2012 | CN102817462A Fireproof air exhaust duct inlet voltage transformation flow guide device |
| 12/12/2012 | CN102817461A Self-changing pressure exhaust channel of branching air channel |
| 12/12/2012 | CN101832012B High-strength splicing fireproof exhaust gas flue |
| 12/05/2012 | CN202577903U Construction waste clearing channel during high-rise building construction |
| 12/05/2012 | CN202577902U Combined fireproof smoke-exhausting flue |
| 12/05/2012 | CN202577901U Unpowered efficient smoke-exhausting funnel cap |
| 12/05/2012 | CN202577900U Exhaust duct structure for fireproof door of house |
| 12/05/2012 | CN202577899U Portable odor-diffusion prevention exhaust pipe |
| 12/05/2012 | CN202577898U Device for performing preservative treatment on joining seam of steel flue and chimney |
| 12/05/2012 | CN202577897U Explosion venting well head equipment |
| 12/04/2012 | DE202012010491U1 Vorrichtung zur Durchführung von Kabeln durch eine Gebäudewand A device for passing cables through a building wall |
| 11/28/2012 | CN202559664U Building pipeline wall member |
| 11/28/2012 | CN202559663U Variable pressure type exhaust passage |
| 11/28/2012 | CN202559662U Draught flue for kitchen in house |
| 11/28/2012 | CN202559661U Air inducing, flue gas evacuating, and fire hazard proofing building |
| 11/28/2012 | CN102797343A Vertical shaft type intake and exhaust method and a structure utilizing the same |
| 11/27/2012 | US8316986 Sound attenuation canopy |
| 11/27/2012 | DE202012010570U1 Luftkanal Air duct |
| 11/27/2012 | DE202012008927U1 Lüftungskamin Ventilation duct |
| 11/23/2012 | DE202012008029U1 Lüftungsrohr - Bauelement mit verbesserter Schallabsorption sowie Außenwandluftdurchlass Ventilation pipe - device with improved sound absorption and exterior wall air passage |
| 11/22/2012 | US20120292127 Air intake duct |
| 11/22/2012 | US20120291376 Arrangement for a laboratory room |
| 11/21/2012 | CN202544339U Article-throwing door structure used on automatic dirty clothes container |