| Patents for E04F 17 - Vertical ducts; Channels, e.g. for drainage (3,992) |
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| 08/13/1997 | CN1156914A Crimp metal wire pipe box connecting mode |
| 08/07/1997 | WO1997028329A1 Interior lining for the restoration of rooms, in particular bathrooms, as well as a method for restoring such rooms |
| 07/31/1997 | DE19602758A1 Cellar-light-shaft fixing bracket |
| 07/30/1997 | EP0786846A1 Electrical installation channel |
| 07/30/1997 | EP0786845A1 Sheath, especially for hospital establishment |
| 07/30/1997 | CN2258517Y Skip bucket type pedal rubish door |
| 07/29/1997 | CA2034879C Butt connection between two air duct sections made of sheet metal |
| 07/17/1997 | DE19700477A1 Cellar light opening cover |
| 07/15/1997 | US5647154 Decorative window well shield |
| 07/10/1997 | DE19600355A1 Screw coupling for concrete reinforcement rod |
| 07/08/1997 | US5644883 Multiple use corner clip |
| 07/08/1997 | US5644871 Modular building system |
| 06/26/1997 | DE19547901A1 Chimney stacks having joints with improved seal |
| 06/05/1997 | WO1997020173A2 Sealing device |
| 06/04/1997 | CN2255467Y Toughened master-slave exit flue |
| 05/21/1997 | EP0746659A4 Drop delivery chute |
| 05/21/1997 | EP0734479A4 System preventing spread of fire and smoke |
| 05/07/1997 | DE19540924A1 Method of guiding pipeline and or air in walls floors and roofs |
| 05/07/1997 | DE19540445A1 Piping box of mortar-coated plastic foam boards |
| 04/24/1997 | DE19538536A1 Prefabricated condensation flue for heating system with low flue gas temperature |
| 04/10/1997 | DE19537373A1 Reinforcing system for chimney in building |
| 04/09/1997 | CN2251593Y Bottom pipe of general vertical duct for carrying away waste gas |
| 03/27/1997 | WO1997011013A1 Isolated insertion chute for suction-operated garbage disposal systems |
| 03/27/1997 | DE19535113A1 Ventilation plant with heat-resistant, preferably metal sectional main pipe |
| 03/20/1997 | DE19534458A1 Installation system for laying of cables and gas/water pipes in wall of room |
| 03/19/1997 | EP0763690A2 Method of kerfing insulation boards and ducts and duct liners formed from said boards |
| 03/19/1997 | CN2249785Y Composite plastic line boards for decoration |
| 03/06/1997 | DE19532681A1 Mounting for fastening ventilation or cable channels to walls |
| 02/26/1997 | EP0539500B1 Separated waste collection system for multi-story building |
| 02/05/1997 | EP0757141A1 Shuttering for chimneys |
| 02/05/1997 | CN2246692Y Guide and sound damping board for use in large air channel |
| 02/05/1997 | CN2246691Y Pressure-changing air channel for high building |
| 02/05/1997 | CN1142257A Drop delivery chute |
| 02/05/1997 | CN1141996A Method for making fiber-reinforced cement flue pipe |
| 01/21/1997 | US5595453 Construction member protector plate unit |
| 12/27/1996 | EP0750162A2 Sealing device for chimney pipes |
| 12/19/1996 | DE19522046A1 External lift shaft for multistoreyed building |
| 12/18/1996 | CN2242925Y Electric blast-hole closing device |
| 12/18/1996 | CN1033565C Method for making flue gas channel of fibre reinforced cement |
| 12/11/1996 | EP0746659A1 Drop delivery chute |
| 12/11/1996 | CN2242285Y Fire-proof type bus wire channel |
| 12/11/1996 | CN2242284Y integrated duct for carrying away flue-gas |
| 12/04/1996 | CN2241725Y Air convector for sound-insulation installation |
| 11/28/1996 | WO1996037671A1 Plastic light well with cover |
| 11/28/1996 | DE19519228A1 Kunststoff-Lichtschacht mit Abdeckung Plastic light well with cover |
| 11/28/1996 | CA2219982A1 Plastic light well with cover |
| 11/27/1996 | CN2241183Y Sumptuous smoke vent with decoration face plate |
| 11/20/1996 | EP0743735A2 Bundling arrangement for feeding lines in a building |
| 11/20/1996 | CN2240559Y Plastic down pipe joint |
| 11/19/1996 | US5575131 Multiple use corner clip |
| 11/14/1996 | WO1996035915A1 Brick for heat exchangers |
| 11/13/1996 | CN2240003Y Wire channel in building |
| 11/13/1996 | CN2240002Y High-efficiency filter air intake |
| 10/29/1996 | US5568947 Clothes dryer air exhaust duct wall connector |
| 10/04/1996 | CA2146173A1 Dynamic-insulation wall element for renewing air in buildings in order to make them more comfortable and cheaper |
| 10/02/1996 | EP0734479A1 System preventing spread of fire and smoke |
| 09/18/1996 | EP0732465A1 A chimney insulating element |
| 09/12/1996 | DE19508359A1 Method of installing flue gas pipes in buildings |
| 07/31/1996 | CN1127829A Through-flooring waterproofing method for installation of pipe of buildings equipment |
| 07/26/1996 | CA2141079A1 Clothes dryer air exhaust duct wall connector |
| 06/26/1996 | EP0718945A2 A raceway assembly |
| 06/26/1996 | CN1125287A Facade transverse and longitudinal hollow member and its construction method |
| 06/20/1996 | DE4443712A1 Floor plank for balcony |
| 06/20/1996 | DE4443270A1 Mfg. parts for chimney flues etc. |
| 06/19/1996 | CN2229486Y Multi-knuckle joint ball shape structure receiving utility lines device |
| 06/19/1996 | CN1032076C Apparatus for arranging air channel in building and its using method |
| 06/18/1996 | US5526617 Tamperproof conduit concealing system |
| 06/12/1996 | CN1124542A Lower part for an installation duct |
| 06/12/1996 | CN1124541A Installation conduit, especially under-floor type |
| 05/30/1996 | DE19509579A1 Refined steel tube section for erection of jacketed chimney |
| 05/21/1996 | US5518339 Cable/pipe suspension device and laying apparatus |
| 05/15/1996 | EP0712188A1 Cable duct |
| 04/24/1996 | CN1121134A Pressure-variable ventilation pipe structure for high building |
| 04/17/1996 | EP0707119A1 Connecting and fixing system |
| 04/17/1996 | EP0706595A1 A method for constructing a building to which persons may have access and building elements for such a building |
| 04/17/1996 | CN2224878Y Controling unit for smoke exhaust |
| 04/10/1996 | CN2224242Y Enclosed refuse-dumping device |
| 03/14/1996 | DE4431691A1 Installation conduit arrangement for electrical cables and piping |
| 03/06/1996 | EP0699356A1 Installation conduit, especially under-floor type |
| 02/28/1996 | EP0698308A1 Lower part for an installation duct |
| 02/07/1996 | CN2219342Y Self-flowing discharging device of waste and rubbish chute for building |
| 02/01/1996 | DE4426708A1 System for cleaning and disinfecting domestic waste disposal shafts |
| 01/25/1996 | DE4425448A1 Chimney for multi-storey house with integral cabling shafts |
| 01/24/1996 | CN2218219Y Pressure changing component for gas exhausting passage |
| 01/24/1996 | CN2218218Y Pressure changing gas exhausting structure of high-rising building |
| 01/24/1996 | CN1115352A Vertically and integrally discharging duct in wall |
| 01/23/1996 | US5485706 Offset forming of structural components |
| 01/17/1996 | CN1114933A Double-wall sound-insulating plastic pipe |
| 01/16/1996 | CA2004045C Multiple walled chimney |
| 01/10/1996 | CN2217057Y Arrangement for removing refuse for high building |
| 01/04/1996 | DE4423327A1 Manufacturing process for mouldings esp. chimney liners |
| 01/03/1996 | CN2216557Y Automatic resetting fireproof tuyer |
| 12/20/1995 | EP0687845A1 Corner slip-on flange system for duct connections |
| 12/19/1995 | US5475961 Vertical post assembly |
| 12/13/1995 | CN2214980Y Fibre reinforced cement wire groove for building |
| 12/07/1995 | DE4418872A1 Quadratic shaft element esp. for chimneys |
| 12/06/1995 | CN2214474Y Building dustbin |
| 11/30/1995 | DE4418636A1 Ventilating system for building |
| 11/29/1995 | CN2213780Y Exhause pipe structure of high-storey building |
| 11/29/1995 | CN2213779Y Anti-seepage casting drain pipe |