| Patents for E01H 4 - Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow (708) |
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| 11/13/2002 | EP1255895A1 Working device |
| 11/12/2002 | US6477794 Planing device mounted on machines for processing ice |
| 11/07/2002 | US20020162669 Snow or soil grader |
| 10/24/2002 | US20020156574 Snow groomer having improved electronic controls |
| 10/22/2002 | CA2335710C Cross-country skiing mini track setter designed to be attached to a recreational vehicle |
| 10/15/2002 | US6466870 System and method for maintaining a ski slope using snowmaking apparatuses |
| 10/03/2002 | US20020139013 Snow track preparation machine with mill mounted in a revolving manner |
| 10/02/2002 | EP1245736A2 Apparatus for maintaining ski tracks with pivotable mounted milling tool |
| 09/25/2002 | EP1242692A1 Snow groomer having an improved variable geometry tiller assembly |
| 09/19/2002 | WO2002072213A2 System and method for maintaining a ski slope using snowmaking apparatuses |
| 08/29/2002 | WO2002066747A1 System and method for maintaining ski run in skifield by utilizing artificial snow producing machine |
| 08/22/2002 | US20020116122 System and method for maintaining a ski slope using snowmaking apparatuses |
| 08/13/2002 | CA2335692A1 System and method for maintaining a ski slope using snowmaking apparatuses |
| 07/16/2002 | US6418733 Method and device for preserving snow |
| 07/16/2002 | US6418645 Milling unit for the beating of snow-covered slopes |
| 07/15/2002 | CA2339872A1 The ice caulker |
| 07/03/2002 | EP0973973B1 Rotary snow plow |
| 06/27/2002 | US20020079145 Piste-maintenance tracklaying vehicle |
| 06/19/2002 | EP1214476A1 Vehicular arm assembly |
| 05/14/2002 | CA2248836C Ice rink cover |
| 04/09/2002 | US6367176 Rotary snow plow |
| 03/28/2002 | US20020035797 Snow groomer assembly |
| 03/21/2002 | US20020034419 Snow compacting tool |
| 03/21/2002 | DE10045524A1 Ski piste preparation device uses sensor(s) for detecting actual surface conditions of snow evaluated for determining required surface treatment |
| 03/12/2002 | US6354023 Snow groomers and control system therefor |
| 03/05/2002 | US6351899 Apparatus and method for snow grooming a terrain park or ski area slopes |
| 02/27/2002 | EP1182409A1 Computer controlled equipment for maintaining and covering skiing slopes with snow |
| 02/20/2002 | CA2347340A1 A vehicle and a method using the vehicle for forming an ice road |
| 02/06/2002 | EP1177349A2 Snow groomer having improved electronic controls |
| 01/31/2002 | US20020011012 Snow surface grooming apparatus |
| 11/29/2001 | WO2001055511A3 Snow groomer having improved electronic controls |
| 11/22/2001 | US20010043862 Rotary valve to feed artificial snow at constant rate |
| 11/21/2001 | EP1155982A1 Rotary valve to feed artificial snow at constant rate |
| 10/17/2001 | EP1144777A1 Snow groomers and control system therefor |
| 09/27/2001 | WO2001071098A1 Snow groomer with a variable snowchamber tiller assembly |
| 09/27/2001 | CA2403753A1 Snow groomer with a variable snowchamber tiller assembly |
| 08/30/2001 | US20010017366 Device for setting and automatic adjustment of the tractive force of a cable of an overhead winch for a ski slope preparation and maintenance machine |
| 08/09/2001 | WO2001057321A1 Working device |
| 08/09/2001 | CA2399091A1 Device for performing work tasks in a ski run area |
| 08/02/2001 | WO2001055511A2 Snow groomer having improved electronic controls |
| 08/02/2001 | CA2365602A1 Snow groomer having improved electronic controls |
| 07/25/2001 | EP1118580A1 Device for automatic tension control of a cable for a piste grooming device |
| 06/21/2001 | WO2001044582A1 Snow groomer having an improved variable geometry tiller assembly |
| 06/20/2001 | EP1108093A1 Planing device mounted on machines for processing ice |
| 05/30/2001 | CN1066510C Ice composite bodies |
| 03/22/2001 | DE10045346A1 Cutting unit for preparing snow-covered pistes has side cutters linked to central cutter via angled ball joints, angled axles of joint points to central cutter axes and side cutter axes |
| 03/15/2001 | WO2001018314A1 Vehicular arm assembly |
| 02/28/2001 | EP1078209A1 Method and device for preserving snow |
| 12/28/2000 | WO2000079060A1 Planing device mounted on machines for processing ice |
| 11/02/2000 | EP1048789A1 Apparatus for securing,monitoring and management of the ski area of wintersportplaces |
| 10/31/2000 | US6138387 Portable ice resurfacing device |
| 10/18/2000 | EP1044307A1 Track maintenance device |
| 10/11/2000 | EP0895495B1 Road maintenance tracklaying vehicle |
| 09/20/2000 | EP1036885A1 Device for preparing and treating snow surfaces |
| 09/19/2000 | US6119466 Ice surface |
| 08/08/2000 | US6099208 Ice composite bodies |
| 08/01/2000 | US6094845 Snow-handling trail-grooming device |
| 07/26/2000 | EP1021623A1 Device for forming half-pipes |
| 07/11/2000 | US6085445 Piste-preparation device |
| 06/22/2000 | WO2000036250A1 Snow groomers and control system therefor |
| 06/15/2000 | CA2256172A1 Multifunction joystick |
| 02/22/2000 | US6026600 Snow trail grooming accessory |
| 01/26/2000 | EP0973973A1 Rotary snow plow |
| 01/26/2000 | CN1242455A Artificial snow |
| 01/07/2000 | CA2277190A1 Portable ice resurfacing device |
| 12/22/1999 | EP0964961A1 Piste-grooming device |
| 12/01/1999 | EP0960240A1 Apparatus and method for preparation of snow-like material |
| 11/18/1999 | WO1999058910A1 Method and device for preserving snow |
| 10/20/1999 | EP0883715B1 Piste-preparation device |
| 08/31/1999 | CA2008235C Variable geometry tiller |
| 08/24/1999 | US5940995 Apparatus for shaping a snow course |
| 07/28/1999 | EP0804650B1 Ski run maintenance tool |
| 07/15/1999 | WO1999035338A1 Track maintenance device |
| 07/15/1999 | CA2317535A1 Track maintenance device |
| 04/15/1999 | WO1999018292A1 Device for forming half-pipes |
| 04/15/1999 | CA2305672A1 A halfpipe attachement unit |
| 04/07/1999 | CA2213114A1 An improved ice surface |
| 03/30/1999 | CA2209041C Manual ice making and surfacing tool for rinks |
| 02/10/1999 | EP0895495A1 Road maintenance tracklaying vehicle |
| 02/03/1999 | CN1207150A Ice composite bodies |
| 12/16/1998 | EP0883715A1 Piste-preparation device |
| 12/09/1998 | EP0882844A2 Device, working roll and method for working snow |
| 12/09/1998 | EP0882160A1 Piste milling device |
| 12/02/1998 | EP0836660B1 An apparatus for forming a snow half-pipe |
| 11/26/1998 | WO1998052658A1 Tiller with adjustable depth cutter and snow comb entry angle |
| 11/13/1998 | CA2205191A1 Tiller with adjustable depth cutter and snow comb entry angle |
| 11/07/1998 | CA2237037A1 Snow-handling trail-grooming device |
| 10/28/1998 | EP0873450A1 Ice composite bodies |
| 10/27/1998 | US5826814 Safety device for the manoeuvring and auxiliary winching of self-propelled vehicles used on steep slopes |
| 10/22/1998 | WO1998046832A1 Rotary snow plow |
| 09/22/1998 | US5809671 Tiller with adjustable depth cutter and snow comb entry angle |
| 09/03/1998 | WO1998038388A1 Piste-grooming device |
| 08/19/1998 | CA2197918A1 Aluminium k2 vtt system |
| 08/06/1998 | WO1998033986A1 Apparatus and method for preparation of snow-like material |
| 06/30/1998 | US5771698 Ice making and reconditioning tool |
| 06/30/1998 | CA2093031C Drag for snow grooming |
| 06/24/1998 | CA2193898A1 Ski track grooming device |
| 06/16/1998 | US5765782 Used on steep slopes |
| 05/28/1998 | DE19648872A1 Snow embankment forming device for snowboard run |
| 04/22/1998 | EP0836660A1 An apparatus for forming a snow half-pipe |