| Patents for E04G 21 - Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work (22,137) |
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| 03/26/1998 | DE19638539A1 Insulation construction component |
| 03/26/1998 | DE19638340A1 Producing pore-free concrete in shuttering for straight walls |
| 03/25/1998 | EP0830926A2 Concrete container |
| 03/24/1998 | US5730246 For protection of a worker on a roof |
| 03/24/1998 | US5729941 Protective cover for concrete reinforcing bar |
| 03/24/1998 | US5729934 Method and apparatus for integrating vertical rule into construction of room |
| 03/18/1998 | EP0829596A1 Reinforcing bar binding machine |
| 03/18/1998 | EP0699260B1 Roof fall-guard |
| 03/18/1998 | CN2276534Y Internal fitted multi-motor concrete vibrator |
| 03/17/1998 | US5727646 Retractable fall restraint device |
| 03/17/1998 | US5727358 Method of constructing a building |
| 03/17/1998 | US5727279 Apparatus for grading wet concrete |
| 03/12/1998 | WO1998010161A1 Frapping tool |
| 03/12/1998 | DE19636642A1 Device for applying cementing material to shaped block or brick |
| 03/12/1998 | DE19634682A1 Seal for the cables of suspension bridges |
| 03/11/1998 | EP0827559A1 Method and apparatus for curing concrete |
| 03/11/1998 | CN2276047Y Triangle simple crane |
| 03/11/1998 | CN1175929A Article binding method and apparatus |
| 03/10/1998 | US5725304 Battery concrete vibrator |
| 03/05/1998 | DE19635650A1 Pouring concrete to build walls |
| 03/04/1998 | CN1174924A Four-post fixing type holding lever for assembling tower |
| 03/03/1998 | US5722176 Brick alignment apparatus |
| 02/26/1998 | WO1998007950A1 Means for the protection of a window construction and especially for the protection of its window glasses |
| 02/24/1998 | US5720445 Apparatus for winding reinforcing fibers around column |
| 02/24/1998 | US5720140 Reinforcement for building elements under tension and installations provided therewith |
| 02/18/1998 | EP0824174A1 Method and arrangement for applying mortar to the underside of a building-stone |
| 02/18/1998 | EP0824167A1 Method of repairing and reinforcing prestressed concrete structure |
| 02/18/1998 | CN2274667Y Concrete filler |
| 02/17/1998 | US5718305 Safety harness attachment post assembly |
| 02/17/1998 | US5718090 Prestressed concrete tensioning system |
| 02/10/1998 | US5716447 Construction material cement mixture containing polyoxyethylene glycol and diethylene glycol monobutyl ether and/or derivative; high strength, high flow, |
| 02/10/1998 | US5716131 Portable four cycle backpack pendulous vibrator |
| 02/10/1998 | US5715640 Mounting device for controlling uplift of a metal roof |
| 02/10/1998 | CA2183006A1 Guide post for masonry construction |
| 02/09/1998 | CA2211058A1 Adjustable spacing tool |
| 02/05/1998 | DE19726717A1 Shaft cast iron cover with frame resting on concrete ring |
| 02/04/1998 | EP0822304A1 Method of preventing wire from being twisted off in reinforcing bar fastening machine |
| 02/04/1998 | EP0822303A1 Method of preventing wire from becoming entangled in reinforcing bar fastening machine |
| 01/29/1998 | WO1998003751A1 Device for assembling prefabricated concrete parts |
| 01/28/1998 | EP0726997B1 Device for connecting the legs of a set square |
| 01/28/1998 | CN2273337Y Mortar extruding pipe |
| 01/28/1998 | CN1171832A Temporary protective covering system |
| 01/27/1998 | US5711401 Safety protection means for metal scaffolds especially with joints of variable geometry |
| 01/27/1998 | US5711398 Safety rail system for use during construction or maintenance repair of pitched roofs |
| 01/27/1998 | US5711081 Device and method for construction |
| 01/22/1998 | DE19720995A1 Protective cover for freshly poured concrete |
| 01/21/1998 | EP0819203A1 Support device for at least one elastically deformable securing element and a process for section-concreting using elastically deformable securing elements as a concrete connection |
| 01/21/1998 | CN2272923Y Proportioning device for concrete slurrg jet discharger |
| 01/15/1998 | WO1998001639A1 Climbing device for building frames |
| 01/15/1998 | DE19712071A1 Pillars for stair well |
| 01/15/1998 | DE19545407A1 Telescopic stretching device for workpieces, e.g. door parts |
| 01/14/1998 | EP0766771B1 Safety device for preventing objects dropping from roofs |
| 01/14/1998 | EP0757143B1 Transportable device to bind together reinforcing steel |
| 01/14/1998 | CN1170074A Constructing apparatus for concrete construction |
| 01/14/1998 | CN1169971A Anti-firing net sheet |
| 01/14/1998 | CN1169944A Tower-like transfer device |
| 01/13/1998 | US5707179 Method and apparaatus for curing concrete |
| 01/08/1998 | WO1998000644A1 Clamp and clamping tool therefor |
| 01/07/1998 | EP0816620A2 Door or window case and building with window or door openings |
| 01/07/1998 | EP0816582A1 Barrier for preventing the air convection and the emission of noxious substances in building rooms |
| 01/07/1998 | EP0768926A4 Wire tying tool with drive mechanism |
| 12/30/1997 | US5701971 Protective member for metal scaffold knots or joints |
| 12/29/1997 | EP0756654B1 Machine for levelling concrete |
| 12/29/1997 | EP0692056B1 Safety rail system |
| 12/24/1997 | WO1997048863A1 System for covering |
| 12/23/1997 | US5699878 Attachment for a self powered vehicle |
| 12/17/1997 | EP0812963A2 Multipurpose bucket structure |
| 12/17/1997 | EP0812962A2 Multipurpose bucket structure |
| 12/17/1997 | CN2270773Y Building cold bending arch springing machine |
| 12/11/1997 | WO1997046775A1 Vibration generator with portable needle. |
| 12/11/1997 | DE19622611A1 Attachment anchor assembly for in situ concrete formwork |
| 12/09/1997 | US5695560 To allow buliding of consective rows along a vertical plane |
| 12/09/1997 | US5694983 Reinforcing bar binding machine |
| 12/09/1997 | US5694721 Mounting assembly for building surfaces |
| 12/09/1997 | US5694720 Standing clamp for standing seam roof |
| 12/07/1997 | CA2178351A1 Building guard rail scaffold assembly member |
| 12/03/1997 | EP0810153A1 Article binding method and apparatus |
| 12/03/1997 | EP0809740A1 Scaffolding system |
| 11/26/1997 | EP0808965A2 Form for making arched openings in walls |
| 11/26/1997 | CN2268751Y Multifunctional electromagnetic vibrating poker |
| 11/26/1997 | CN2268610Y Wet cement jet with column piston to feed forcibly and uniformly |
| 11/25/1997 | US5689923 Device for securing steel reinforcing or prestressing members in an anchorage |
| 11/20/1997 | DE19619549A1 Stone blank suction gripper |
| 11/18/1997 | US5688428 Holder for vertical steel rebar |
| 11/18/1997 | US5687539 Methods of roofing construction utilizing a positioning or fastening strap |
| 11/18/1997 | US5687535 Detachable roof anchor |
| 11/13/1997 | WO1997042382A1 Device for pouring out concrete |
| 11/13/1997 | DE19618316A1 Vorrichtung zum Ausbringen von Beton A device for discharging concrete |
| 11/13/1997 | DE19618212A1 handle with hook for lifting corrugated roofing sheets |
| 11/11/1997 | US5685112 Apparatus and method for removing structural parts of a building without contaminating adjacent areas |
| 11/06/1997 | DE19632844C1 Application of thin bed mortar on underside of porous building block |
| 11/05/1997 | CN2266626Y Direct vibrating bar |
| 11/05/1997 | CN2266625Y Apparatus for conveying concrete on building tower crane |
| 11/04/1997 | US5683519 Method of cleaning and exposing portions of limited length of strands of steel wire |
| 11/04/1997 | US5683074 Temporary guardrail system |
| 11/04/1997 | US5682961 Skyrise window panel installation assembly |
| 11/04/1997 | US5682927 Tying method and tying apparatus for articles |
| 11/04/1997 | CA2130733C Vibrators |
| 10/30/1997 | WO1997040244A1 Process for making anchoring points and installation of a structure on a terraced roof, and adapted structures |
| 10/30/1997 | DE19616132A1 Method for retro-fitting of plumbing services in multi-storey premises |