| Patents for E01C 13 - Pavings or foundations specially adapted for playgrounds or sports grounds (3,222) |
|---|
| 04/09/1991 | US5006013 Granular type structure with moisture retaining top surface |
| 04/07/1991 | CA2026081A1 Method for use of elastomeric coatings |
| 03/27/1991 | EP0419170A2 Ground surface material |
| 03/27/1991 | EP0418809A1 Method of making mastic asphalt surfacings |
| 03/22/1991 | CA2025701A1 Ground surface material |
| 03/21/1991 | WO1991003604A1 Built-up playing court structure and construction method |
| 03/20/1991 | EP0417832A1 Method for producing yarn for fields of artificial grass and field of artificial grass produced with this yarn |
| 03/12/1991 | US4998717 Impact-absorbing safety matting system for a helipad |
| 02/12/1991 | US4991834 Shock-attenuating seamless surface system for use under and around playground equipment |
| 01/29/1991 | US4988235 System for draining land areas through siphoning from a permeable catch basin |
| 01/24/1991 | WO1991000939A1 A building product |
| 01/24/1991 | WO1991000805A1 Surface covering material |
| 01/17/1991 | DE3921496A1 Drainage cover assembly - consists of two plates one above the other with space between two and fixed together by vertical rods |
| 01/15/1991 | US4984404 Resilient floor |
| 12/28/1990 | WO1991000488A1 Method and apparatus for heat exchange, where channels, e.g. tubes, are secured in recesses in heat-isolating boards |
| 12/28/1990 | CA2062813A1 Method and apparatus for heat exchange where channels, e.g. tubes, are secured in recesses in heat-isolating boards |
| 12/27/1990 | EP0403498A1 Exercise areas |
| 12/25/1990 | US4979373 Apparatus for making and maintaining an ice surface |
| 12/19/1990 | EP0403008A1 Sports field with natural grass and artificial grass and a method for laying same |
| 12/11/1990 | CA1277477C Arena floor and flooring element |
| 12/10/1990 | WO1990015193A1 Artificial lawn, pile yarn for artificial lawn, and method and spinneret for producing said lawn |
| 11/29/1990 | WO1990014137A1 Portable cushioned floor system |
| 11/06/1990 | US4968024 For sports activities |
| 10/17/1990 | EP0392129A1 Tennis court surfacing |
| 10/11/1990 | DE3918240A1 Floor for indoor sports stadium - is supported on struts and beams with intervening layers of damping material |
| 10/11/1990 | DE3911690A1 Golf green construction - involves removing natural soil and replacing it with gravel and filter layers topped up with rooting material and turf |
| 10/03/1990 | EP0390755A2 Composite layered geotextile having low deformability and high filtering and drainage capability |
| 10/02/1990 | US4960345 System for construction of golf course sand bunkers |
| 09/19/1990 | EP0387466A2 Artificial football and athletics pitch |
| 09/18/1990 | US4957788 Shock relieving pad |
| 08/29/1990 | EP0248725B1 Method of rendering a hydraulic structure made of compacted concrete or filled earth water-tight |
| 08/22/1990 | EP0383691A1 Composition of materials without a binder for self-stabilised sporting floors, and sporting floor so realised |
| 08/16/1990 | EP0382119A1 Modular sports tile with lateral absorption |
| 08/15/1990 | CN1044689A Modular sports tile with lateral absorption |
| 08/14/1990 | US4948116 Impact-absorbing safety matting system for a children's play mat |
| 08/09/1990 | WO1990008649A1 Mat |
| 08/07/1990 | US4946719 Multilayer; permeable exterior, shock absorbing material |
| 08/07/1990 | CA1272531A1 Substitute ground surface material |
| 08/01/1990 | EP0379717A1 Slab for a floor covering |
| 07/25/1990 | EP0378725A1 Skate board tracks made from individual modules |
| 07/18/1990 | EP0377925A1 Surfacing composition |
| 06/28/1990 | DE3843974A1 Surface layer for riding grounds |
| 06/20/1990 | EP0373282A1 Process for constructing and keeping up a terrain, particularly a sports ground, and terrain constructed according to this process |
| 06/12/1990 | US4932663 Golf practice swing tee mat |
| 06/05/1990 | US4930286 Modular sports tile with lateral absorption |
| 05/30/1990 | EP0370541A1 Substructure construction for an artificial grass field and artificial grass field having such a substructure construction |
| 05/29/1990 | CA1269544A1 Method and system for the drainage of the ground, and their use |
| 05/23/1990 | DE3839353A1 Surfacing for riding facilities and the like |
| 05/17/1990 | WO1990005004A1 Artificial ski slope |
| 05/17/1990 | DE3937712A1 Artificial roller ski track - has many rollers comprising two truncated-cone sections with cylindrical one between |
| 05/08/1990 | US4923329 Draining method and a machine for implementing same |
| 05/02/1990 | EP0366574A1 Tile for covering the soil |
| 05/01/1990 | US4921741 Recreation surface and tile fastening scheme |
| 04/26/1990 | DE3835880A1 Resilient mat for ground coverings of sports and leisure areas |
| 04/25/1990 | EP0364506A1 Apparatus for use in laying strip material |
| 04/25/1990 | EP0364474A1 Tiles for playground surfaces. |
| 04/24/1990 | US4919568 System for draining land areas through siphoning from a permeable catch basin |
| 04/17/1990 | US4916855 Reinforcing a grassed surface |
| 04/10/1990 | US4914923 Method of covering artificial alpine- or nordic-skiing tracks with snow and means for implementing the method |
| 04/04/1990 | EP0362150A1 Holding and reinforcing modular element for the accomplishment of grass pavings |
| 04/03/1990 | US4913596 Athletic field construction |
| 04/03/1990 | US4913583 Method for waterproofing a roller compacted concrete of rubble |
| 03/21/1990 | EP0359321A1 Fibrillated tapes based on polymers of propylene, and their use in the manufacture of artificial grass |
| 03/14/1990 | EP0358209A2 Tennis court surfacing |
| 03/13/1990 | US4907793 Arrangement allowing varied use of a surface that is provided with a covering of grass or the like |
| 02/21/1990 | EP0355014A1 Consolidation of earth's surface |
| 02/20/1990 | US4902541 Golf range mat |
| 02/20/1990 | US4902540 Modular athletic turf |
| 02/13/1990 | US4900010 Athletic field and playground |
| 01/30/1990 | US4897302 Resilience, durability; polyurethane; acrylic polymer; fiber reinforcement |
| 12/28/1989 | WO1989012719A1 A field construction for a sports or other field |
| 12/20/1989 | CN1006143B Man-made lawn |
| 11/21/1989 | US4882208 Crosslinked closed-celled polyethylene foam and metallic layers; sports equipment, low water absorption; lightweight |
| 11/21/1989 | US4881846 Built-up playing court structure and method for its construction |
| 11/14/1989 | US4879857 Resilient leveler and shock absorber for sport floor |
| 11/07/1989 | US4878780 Apparatus and method of creating and controlling an artifical water table |
| 11/07/1989 | CA1262649A1 Method of constructing water-permeable sportssurface and the like |
| 10/05/1989 | WO1989009306A1 Tracks for equestrian use |
| 10/04/1989 | EP0335110A2 Installation for different uses of an area covered by grass or the like surface |
| 09/27/1989 | EP0334229A1 Powder mixture for a tennis court top layer, and process for touching up same layer |
| 08/29/1989 | US4860516 Portable cushioned floor system |
| 08/29/1989 | US4860510 Modular protective surfacing member |
| 08/24/1989 | WO1989007635A1 Exercise areas |
| 08/15/1989 | US4857368 Coating method |
| 08/01/1989 | US4852870 Sand in a butadiene-styrene binder |
| 07/18/1989 | US4848058 Recreation surface and tile interlocking scheme |
| 07/11/1989 | US4846457 Impact-absorbing safety matting system for a sports game surface |
| 07/11/1989 | CA1257101A1 Land drainage system |
| 06/29/1989 | WO1989005885A1 Apparatus for use in laying strip material |
| 06/28/1989 | EP0322090A2 Reinforcing a grassed surface |
| 06/28/1989 | EP0195017B1 Ground drainage method, system for implementing such method and application of the method |
| 06/27/1989 | EP0305454A4 Sporting surfaces. |
| 06/22/1989 | DE3742160A1 Floor covering material for sports facilities or the like |
| 06/08/1989 | DE3802431C1 Method for restoring the brick-dust top layer of tennis courts |
| 05/23/1989 | US4832526 Underground watering system |
| 05/16/1989 | US4830532 Tracks for sporting events |
| 05/16/1989 | CA1254241A1 Edging element with interlaceable elastic anchoring strip |
| 05/09/1989 | US4827665 Soil conditioning product and process |
| 05/09/1989 | CA1253896A1 Pedestrian, vehicular or sports playing surfaces and underlays/shock pads |
| 05/03/1989 | EP0314622A2 Sports- or playground |