| Patents for E01C 13 - Pavings or foundations specially adapted for playgrounds or sports grounds (3,222) |
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| 05/03/1989 | DE3725048A1 Process for producing and applying carrier means for natural grass |
| 05/02/1989 | US4826350 Method for constructing water-permeable sports surface and the like |
| 04/26/1989 | EP0312706A2 Method for the production of a covering and its application |
| 04/18/1989 | US4822026 Playing surfaces |
| 04/11/1989 | US4819933 All weather surfaces |
| 03/30/1989 | DE3820880A1 Delimiting element for delimiting lanes in sports facilities or the like |
| 03/28/1989 | US4815301 Portable ice skating rink |
| 03/22/1989 | EP0307541A2 Drainage mat |
| 03/14/1989 | US4812339 Shirasu, compost, shellfish and coral fossil, vermiculite and polyoxyethylene glycol |
| 03/08/1989 | EP0305454A1 Sporting surfaces. |
| 03/07/1989 | US4810560 Batting box |
| 02/22/1989 | EP0304008A1 Slide element for winter sport rinks and slopes, and process for producing it |
| 02/22/1989 | EP0303958A1 Process for lubricating an artificial ski slope, and artificial ski slope therefor |
| 02/09/1989 | WO1989001076A1 Turf surfaces |
| 02/02/1989 | DE3721812A1 Sand-filled artificial turf |
| 02/01/1989 | EP0301843A1 Mat and method of manufacture |
| 01/26/1989 | DE3723364A1 Process for producing and applying carrier means for natural grass |
| 01/24/1989 | US4800119 Resilient, wear-and weather-resistant composite surface material |
| 01/12/1989 | DE3721688A1 Process and moulding composition for producing a wear layer, in particular for cycle tracks and highly stressed regions of children's playgrounds |
| 12/29/1988 | WO1988010339A1 Tiles for playground surfaces |
| 12/20/1988 | US4792133 Particulate material with a binder of polymeric material dispe rsed in oil |
| 12/06/1988 | CA1246109A1 Artificial grass |
| 11/30/1988 | EP0292865A2 Multilayer cushion layer under artificial lawns and its use |
| 10/20/1988 | DE3809629A1 Paving element made of rubber-like material |
| 09/22/1988 | WO1988006971A1 Sporting surfaces |
| 08/24/1988 | CN88100455A Method for mfg. web of plestic turf for sports grounds |
| 08/18/1988 | DE3703866A1 Multilayer playing surface covering |
| 08/03/1988 | EP0276824A2 Process for the production of a continuous material having padded elements for sports fields |
| 07/13/1988 | EP0274305A2 Method for covering artificial alpine or nordic ski runs with snow and means for carrying out the method |
| 07/05/1988 | CA1238810A1 Manipulating large sections of artificial turf |
| 06/28/1988 | CA1238667A1 Artificial cross-country ski surface with pair of bent over ski tracks |
| 06/16/1988 | WO1988004394A1 Method for covering with snow artificial slopes for downhill or cross-country skiing, and means for implementing such method |
| 06/14/1988 | CA1238063A1 Ice skating rink |
| 06/14/1988 | CA1237904A1 Drainage mat |
| 05/18/1988 | EP0267872A2 Multipurpose track for practicing sports, particularly equitation |
| 05/11/1988 | DE3731753A1 Device for attaching limiting plates |
| 04/19/1988 | US4738407 Manipulating large sections of artificial turf |
| 04/13/1988 | EP0263566A1 Field of artificial grass and fibre material intended for such a field of artificial grass |
| 04/12/1988 | CA1235160A1 Synthetic grass playing field surface |
| 04/05/1988 | US4735825 Method of applying and bonding free-flowing bulb material to artificial grass |
| 03/23/1988 | EP0260872A2 Tufted carpeting having stitches thermally bonded to backing |
| 03/23/1988 | EP0260769A1 Method of providing a substructure construction for an artificial grassfield and an artificial grassfield having such a substructure construction |
| 03/16/1988 | EP0259940A2 Method of manufacturing an artificial grass and an artificial grass obtained therewith |
| 03/09/1988 | EP0258871A2 Rink |
| 03/03/1988 | DE3724044A1 Playground (sports ground) |
| 03/01/1988 | US4727697 Impact absorbing safety matting system |
| 01/28/1988 | DE3624356A1 Arrangement for heating a playing field or the like |
| 01/26/1988 | CA1231802A1 Artificial turf playing fields |
| 12/17/1987 | WO1987007520A1 Underlay shock pad |
| 12/16/1987 | CN87104677A Method for rendering waterproof a roller compacted concrete or rubble hydraulic structure |
| 12/09/1987 | EP0248725A1 Method of rendering a hydraulic structure made of compacted concrete or filled earth water-tight |
| 12/03/1987 | WO1987007315A1 Pedestrian, vehicular, or sports playing surface structures |
| 12/01/1987 | CA1229854A1 Unitary shock-absorbing polymeric pad for artificial turf |
| 11/10/1987 | US4705706 Tufted carpeting having stitches thermally bonded to backing |
| 11/03/1987 | US4704047 Land drainage system |
| 11/03/1987 | US4703597 Arena floor and flooring element |
| 09/01/1987 | CA1226313A1 Synthetic turf carpet game playing surface |
| 08/25/1987 | US4688357 Multi-purpose stadium system |
| 08/05/1987 | EP0231057A2 Substitute ground surface material |
| 07/16/1987 | DE3535432A1 Sports ground flooring - with permanent elasticity by admixture of shredded rubber to lavalit layer |
| 07/14/1987 | US4679963 Playground construction |
| 06/23/1987 | CA1223128A1 Elongated bendable drainage mat |
| 05/26/1987 | US4667481 Method of and apparatus for emitting light in ice |
| 05/07/1987 | DE3539204A1 Construction material for the wearing surface of a sports ground and/or playground, in particular tennis court, a process for producing such a ground, and sports ground and/or playground, in particular tennis court, having a wearing surface made of the construction material |
| 05/05/1987 | US4662778 Drainage mat |
| 04/21/1987 | US4659247 Edging element with interlaceable elastic anchoring strip |
| 04/08/1987 | EP0216953A2 Tennis floor covering |
| 04/07/1987 | US4655635 Sand scattering device for artificial lawn |
| 04/01/1987 | EP0216344A1 Method of producing surface coverings, for instance for cycling tracks, garden paths, childrens' playgrounds and for insulating buildings |
| 03/24/1987 | CA1219611A1 Backing mat for a ground covering, preferably for a water-permeable artificial grass, as well as a method for its production |
| 03/17/1987 | US4650180 Sports ground, in particular tennis court or mini court formed by using removable panels |
| 03/10/1987 | US4649166 Baking, grinding, foaming |
| 02/04/1987 | EP0210285A1 Arena floor covering and element suited for composing the same |
| 01/29/1987 | DE3525441A1 Ground-covering sheet |
| 01/20/1987 | US4637942 U-shaped, double bent fibers; for football, soccer, contact sports |
| 01/10/1987 | CN85102143A Man-made lawn |
| 12/10/1986 | EP0204381A1 Sports ground |
| 11/18/1986 | CA1214046A1 Creating and controlling an artificial water table |
| 10/29/1986 | EP0199598A2 Improved land drainage system |
| 10/22/1986 | EP0198097A1 Method for the production of textured and/or coloured bituminous surfaces in particular for the construction roads and paths |
| 10/14/1986 | US4617218 Non-directional, like persian lamb; nylons polyesters |
| 10/14/1986 | US4617208 Artificial turf; memory yarn of polypropylene ribbon and heat curable latex adhesive |
| 09/30/1986 | US4614686 Synthetic running surface |
| 09/10/1986 | EP0194174A1 Units for arranging play grounds |
| 08/19/1986 | US4606963 Multilayer-film forming material and free-flowing particles |
| 07/30/1986 | CN85109207A Rapid draining artificial turf playing field |
| 06/25/1986 | EP0185646A2 Process for handling artificial turf |
| 06/25/1986 | EP0185645A2 Rapid draining artificial turf playing field |
| 06/24/1986 | US4596731 Grass protecting walkway grid |
| 06/17/1986 | US4594859 Ice skating rink |
| 05/14/1986 | EP0180688A1 Curbing element with an elastically faced top face |
| 05/13/1986 | US4588189 Manipulating large sections of artificial turf |
| 04/22/1986 | US4584221 Coupling members and supporting feet, locking cams |
| 04/09/1986 | EP0177335A2 Artificial sports surface |
| 04/08/1986 | CA1202991A1 Playing surfaces sports |
| 03/25/1986 | US4577448 Artificial ice skating floor |
| 03/19/1986 | EP0174755A1 Pedestrian, vehicular, or sports playing surfaces and underlays/shock pads |
| 03/18/1986 | US4576511 Apparatus and method of creating and controlling an artificial water table |
| 03/13/1986 | WO1986001552A1 Ground drainage method, system for implementing such method and application of the method |
| 03/11/1986 | CA1201618A1 Manipulating large sections of artificial turf |