| Patents for A63C 19 - Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor (2,977) |
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| 07/08/1986 | US4599012 Self-redressing slalom pole |
| 06/25/1986 | EP0185646A2 Process for handling artificial turf |
| 06/24/1986 | US4596731 Grass protecting walkway grid |
| 06/19/1986 | WO1986003420A1 Integrated leasure installation for ball games |
| 06/10/1986 | CA1205663A1 Apparatus for forming cross country ski tracks |
| 05/27/1986 | US4591525 Transparent thermoplastic sheet |
| 05/22/1986 | WO1986002936A1 Method for making artificial snow |
| 05/14/1986 | EP0180688A1 Curbing element with an elastically faced top face |
| 05/13/1986 | US4588324 Slalom pole |
| 05/13/1986 | US4588189 Manipulating large sections of artificial turf |
| 04/09/1986 | EP0177335A2 Artificial sports surface |
| 04/09/1986 | EP0177155A2 Playing surface for sports |
| 04/08/1986 | US4581269 Means for anchoring carpeting or the like, and a method of and apparatus for making the same |
| 03/12/1986 | EP0173969A2 Slalom post |
| 03/04/1986 | US4574101 Polyethylene foam; closed-cell, varying desities |
| 01/22/1986 | EP0168545A1 Unitary shock-absorbing polymeric pad for artificial turf |
| 01/14/1986 | US4564190 Appliance for practicing aquatic sports |
| 12/10/1985 | US4557475 Cushioned activity surface with closed cell foam pad bonded to hard surface and rubber mat |
| 12/03/1985 | US4556213 Reversible playing or performance area |
| 12/03/1985 | CA1197531A1 Device for dividing ice-hockey rinks into smaller sections |
| 11/21/1985 | EP0161243A1 Wawe generator for sport and game |
| 11/13/1985 | EP0160770A1 Playfield with resilient borders, realized by means of prefabricated modular units |
| 10/09/1985 | EP0156927A1 Wave generator for surfing with roller skates and skateboard |
| 10/08/1985 | US4545531 For use with an aerosol spray can |
| 09/26/1985 | WO1985004110A1 Device for drawing baseball lines |
| 09/03/1985 | US4538811 Arbitration of tennis by change of colors |
| 08/13/1985 | US4535021 Backing mat for a ground covering, preferably for a water-permeable artificial grass, as well as a method for its production |
| 07/30/1985 | CA1191169A1 Tennis court |
| 07/18/1985 | WO1985003009A1 A game and court |
| 06/18/1985 | US4523398 Track former for cross country ski tracks with means to move former to transport position |
| 06/04/1985 | US4520985 Playing field boundary flag and support therefor |
| 05/08/1985 | EP0140868A2 Artificial turf playing fields |
| 05/08/1985 | EP0140806A1 Jumping ramp for sail boards or other aquatic sporting devices |
| 05/08/1985 | EP0139865A2 Ski track grooming vehicle |
| 05/07/1985 | US4514992 Refrigeration system for ice rinks utilizing pressure control/metering valve |
| 04/16/1985 | US4510692 Template |
| 04/16/1985 | CA1185630A1 Surfing hill |
| 04/02/1985 | CA1184800A1 Means for making a ski trail |
| 03/19/1985 | US4505960 Unitary shock-absorbing polymeric pad for artificial turf |
| 03/06/1985 | EP0133761A2 Transparent thermoplastic sheet |
| 03/05/1985 | CA1183358A1 Apparatus for making and maintaining an ice surface |
| 02/19/1985 | CA1182633A1 Spraying apparatus |
| 02/12/1985 | CA1182484A1 Synthetic turf playing surface with resilient top dressing |
| 02/05/1985 | US4497853 Synthetic turf carpet game playing surface |
| 02/05/1985 | US4497483 Device for dividing ice-hockey rinks |
| 01/15/1985 | US4493486 Ball base construction and anchor |
| 01/01/1985 | US4491438 Delineator pole, more particularly for skiing race courses, having a pivotable arrangement |
| 12/25/1984 | US4489669 Marker |
| 12/06/1984 | WO1984004695A1 Wawe generator for sport and game |
| 11/14/1984 | EP0125179A1 Self-supporting court for playing squash, racquets or the like, modular construction device therefor and process for producing it |
| 11/08/1984 | WO1984004255A1 Self-carrying court for squash, racket ball or similar sports, device for the modular construction thereof and method for its implementation |
| 10/31/1984 | EP0123137A2 Supporting device for wall elements |
| 10/25/1984 | EP0110884A4 Surfing hill. |
| 10/03/1984 | EP0120207A2 Matt as an underlay for a surfacing, in particular for water permeable artificial turf, and process for its manufacture |
| 09/18/1984 | US4472472 Protective device |
| 08/08/1984 | EP0114829A1 Post with spring joint. |
| 07/24/1984 | US4461469 Ball court with multiple rebound surfaces |
| 06/20/1984 | EP0110884A1 Surfing hill |
| 06/12/1984 | CA1169106A1 Panel having connector means for forming a composite sports ground for e. g. skating, bowling and the like, and method of assembling such sports ground |
| 05/30/1984 | EP0109941A1 Resilient flooring, particularly for sports establishments |
| 05/23/1984 | EP0109065A1 Concrete block for securing the edges of a synthetic turf material |
| 05/01/1984 | US4445689 Marble playing court |
| 04/17/1984 | US4442975 Striping apparatus for marking surfaces |
| 03/20/1984 | US4437245 Means for making a ski trail |
| 02/22/1984 | EP0100951A1 Tilting stick |
| 02/15/1984 | EP0100560A2 Shaped member forming the playing lines of tennis courts |
| 02/15/1984 | EP0016222B1 Wall system |
| 02/07/1984 | US4429872 Foul or base lines for athletic activities |
| 01/31/1984 | CA1161466A1 Sporting or recreational slide |
| 01/18/1984 | EP0098627A1 A method for finishing artificial grass surfaces, and tools serving thereto |
| 01/03/1984 | US4423864 Angularly adjustable ski deck |
| 12/27/1983 | US4422632 Tiltable tennis court |
| 12/22/1983 | WO1983004375A1 Surfing hill |
| 12/21/1983 | EP0096216A2 Method for the practice of watersports in which water is directed upwardly over an inclined surface and watersport equipment for carrying out such a method |
| 10/13/1983 | WO1983003361A1 Post with spring joint |
| 10/04/1983 | US4407501 Curved ball court |
| 09/20/1983 | US4405130 Location indicator for use in baseball and similar games |
| 08/23/1983 | US4399954 Manipulating large sections of artificial turf |
| 08/16/1983 | US4398714 Ball base construction and anchor |
| 08/10/1983 | EP0085196A1 Couplable mat |
| 07/19/1983 | US4394173 Sporting and recreational facility slide |
| 06/07/1983 | US4387130 Tiles for forming sports ground coverings and in particular ski runs |
| 06/07/1983 | CA1147766A1 Curved ball court |
| 05/04/1983 | EP0077875A1 Squash court with walls made of pressboard panels coated with plastics |
| 05/03/1983 | CA1145784A1 Surface covering |
| 04/28/1983 | WO1983001390A1 A device for dividing ice-hockey rinks |
| 04/20/1983 | EP0077313A1 Flexible slalom pole |
| 02/09/1983 | EP0071567A1 Tennis court |
| 11/30/1982 | US4361103 Water sled device |
| 11/23/1982 | CA1136170A1 Floor covering for sports arenas |
| 11/03/1982 | EP0064005A2 Plates for forming sports ground coverings, and in particular ski runs |
| 10/27/1982 | EP0063254A1 Safety slalom pole |
| 10/26/1982 | US4355813 Playing field layout |
| 10/12/1982 | US4353307 Towing device for use in the surf |
| 09/21/1982 | US4350721 Automatic matching of court lines |
| 08/24/1982 | US4345544 Apparatus for forming lines on an athletic playing field or court |
| 08/05/1982 | EP0051631A4 Ice rink cover. |
| 07/28/1982 | EP0056539A1 Apparatus for temporarily protecting athletic fields and swimming pools |
| 06/29/1982 | US4336932 Edging for the track inside of a sports installation |
| 05/25/1982 | CA1124274A2 System and method for converting synthetic turf surfaces from one to another condition |