| 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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| 02/24/1998 | CA2161192C Machine for packing snow |
| 12/30/1997 | US5701690 Device for filling a hole in an ice rink surface |
| 12/26/1997 | CA2179838A1 Safety device for the manoeuvring and auxiliary winching of self-propelled vehicles |
| 12/15/1997 | CA2178966A1 Rinkmate - manual ice resurfacer |
| 11/06/1997 | WO1997040996A1 Road maintenance tracklaying vehicle |
| 11/05/1997 | EP0804650A1 Ski run maintenance tool |
| 10/28/1997 | US5680715 Machine for packing snow or the like along a trail |
| 10/26/1997 | CA2174998A1 Apparatus for moving curling pebble from an ice surface |
| 10/14/1997 | US5677432 Immunological detection of organophosphates |
| 09/04/1997 | WO1997032085A1 Piste-preparation device |
| 09/04/1997 | CA2245652A1 Piste-preparation device |
| 08/28/1997 | WO1997031158A1 Piste milling device |
| 08/26/1997 | US5659984 Adapted to be attached to a vehicle |
| 08/14/1997 | WO1997029243A1 An apparatus for forming a snow half-pipe |
| 08/14/1997 | CA2216159A1 An apparatus for forming a snow half-pipe |
| 07/17/1997 | WO1997025483A1 Ice composite bodies |
| 07/17/1997 | CA2242055A1 Ice composite bodies |
| 05/28/1997 | EP0674734B1 Ski slope maintenance device |
| 05/27/1997 | US5632106 Tiller with adjustable depth cutter and snow comb entry angle |
| 03/12/1997 | EP0761890A1 Safety device for the manoeuvring and auxiliary winching of self-propelled vehicles used on steep slopes |
| 03/08/1997 | CA2184859A1 Safety device for the manoeuvring and auxiliary winching of self-propelled vehicles used on steep slopes |
| 12/10/1996 | US5581914 Snow cutting tooth for rotating cutter bar of ski slope tiller |
| 10/09/1996 | EP0581885B1 Snow tiller with compactor pan |
| 10/02/1996 | EP0735196A1 In line sliding surface forming apparatus for schanze, groove forming apparatus for in line sliding surface, in line sliding surface adjusting method, and groove forming method |
| 08/27/1996 | CA2106026C Trailable snow plow for off road use |
| 08/21/1996 | EP0726984A1 Ski trail remodelling machine |
| 07/25/1996 | WO1996022425A1 Ski run maintenance tool |
| 07/25/1996 | CA2210539A1 Ski run maintenance tool |
| 07/23/1996 | CA2107882C Snow grooming comb with angularly positioned elongate teeth |
| 07/16/1996 | US5536411 Water and energy recovery process for an ice rink |
| 07/03/1996 | EP0719726A1 Safety device fot the manoeuvring and auxiliary winching of self-propelled vehicles |
| 05/11/1996 | CA2162528A1 Water and energy recovery process for an ice rink |
| 03/19/1996 | CA2107881C Snow tiller with compactor pan |
| 02/29/1996 | DE4421461A1 Frozen composite support system |
| 12/18/1995 | CA2120207A1 Tracula |
| 10/04/1995 | EP0674734A1 Runway-maintenance device. |
| 05/30/1995 | CA1335692C Additive for treating water used to form ice |
| 04/19/1995 | EP0648899A2 Apparatus for maintaining ski tracks |
| 04/19/1995 | CA2111135A1 Apparatus for maintaining pistes |
| 01/17/1995 | US5381668 Method of maintaining artificial snow surface |
| 12/21/1994 | EP0629206A1 Immunological detection of organophosphates |
| 11/09/1994 | EP0623707A2 Levelling apparatus for attaching to an attachment frame on the front of a selfpropelled vehicle |
| 11/07/1994 | CA2122850A1 Grading apparatus for front mounting to the attachment frame of a drive vehicle |
| 07/07/1994 | WO1994015028A1 Runway-maintenance device |
| 05/11/1994 | WO1994010393A1 Ice rink resurfacing machine |
| 05/11/1994 | WO1994010392A1 An ice rink resurfacing machine and a method for machining ice tobe used in it |
| 03/02/1994 | EP0584274A1 Snow grooming comb with angularly positioned elongate teeth |
| 02/08/1994 | CA1326763C Spreader attachment apparatus |
| 10/14/1993 | WO1993020286A1 Ski trail remodelling machine |
| 10/14/1993 | WO1992020868A3 Snow grooming comb with angularly positioned elongate teeth |
| 09/27/1993 | CA2064113A1 Snow trail grooming apparatus |
| 09/21/1993 | US5245771 Trailable snow plow for off road use |
| 09/02/1993 | WO1993017030A1 Immunological detection of organophosphates |
| 07/14/1993 | EP0551160A1 Apparatus support for mounting on automotive vehicles, in particular for preparing ski slopes |
| 05/11/1993 | CA1317468C Maintaining an ice rink adjacent a side edge |
| 11/14/1992 | WO1992020868A2 Snow grooming comb with angularly positioned elongate teeth |
| 10/23/1992 | WO1992018700A1 Snow tiller with compactor pan |
| 09/01/1992 | US5142800 Snow groomer tow frame alignment device |
| 07/28/1992 | US5133139 Ice resurfacing spreader |
| 02/04/1992 | US5084992 Snow tiller with compactor pan |
| 01/07/1992 | US5077919 Snow grooming comb with angularly positioned elongate teeth |
| 12/18/1991 | EP0461303A1 Snow vehicle with a device for laying out a cross-country skiing piste |
| 12/17/1991 | US5072530 Device for preparing the landing piste of a ski-jump |
| 11/26/1991 | US5067264 Flexible rotary snow tiller |
| 11/26/1991 | US5067263 Variable geometry tiller |
| 10/16/1991 | EP0451808A1 Method for compacting, in particular a snow layer on a slope and device therefor |
| 10/09/1991 | EP0450138A1 Device for making skiing tracks |
| 07/04/1991 | DE3249984C2 Self propelled ice rink prepn. machine |
| 06/11/1991 | CA1284738C Flexible rotary snow tiller |
| 04/24/1991 | EP0423414A1 Device for preparing the lower ski-run of a ski-jump |
| 04/16/1991 | CA1282988C Ski-track forming apparatus |
| 11/28/1990 | EP0399946A1 Method for making artificial snow |
| 11/06/1990 | CA1275814C Method for insulating an ice rink |
| 10/21/1990 | CA2014568A1 Method of producing artificial snow |
| 09/04/1990 | US4953360 Additive for treating water used to form ice |
| 07/31/1990 | US4944103 Spreader attachment for an ice resurfacing machine |
| 07/17/1990 | US4941275 Snow Groomer vehicle hydraulic hose guide |
| 04/24/1990 | US4918844 Maintaining an ice rink adjacent a side edge |
| 04/10/1990 | US4914923 Method of covering artificial alpine- or nordic-skiing tracks with snow and means for implementing the method |
| 03/27/1990 | CA1267021A1 Snow tiller |
| 02/06/1990 | US4897941 Snow grooming comb |
| 12/26/1989 | US4888891 Levelling attachment |
| 12/19/1989 | CA1263921A1 Lift mounted snowmaker |
| 09/26/1989 | CA1260705A1 Ice resurfacing machine blade holder |
| 08/29/1989 | US4860465 Snow grooming vehicle and attachments |
| 08/16/1989 | EP0328197A1 Scraper bucket material handling unit, especially for snow |
| 03/28/1989 | US4815223 Snow grooming vehicle and attachments |
| 03/08/1989 | EP0305628A1 Ski track working device for snow-grooming vehicles |
| 01/17/1989 | US4798012 Pneumatic process and device for conveying snow |
| 12/06/1988 | US4788783 Ski-track forming apparatus |
| 10/26/1988 | EP0287897A1 Flexible rotary snow tiller |
| 10/04/1988 | US4775014 Ground-working implement |
| 08/30/1988 | US4767239 Method and apparatus for constructing an ice structure |
| 08/09/1988 | CA1240193A1 Snow tiller |
| 08/09/1988 | CA1240192A1 Track maintenance vehicle with vertically adjustable track conditioner implement, particularly a snow tiller apparatus |
| 07/13/1988 | EP0274305A2 Method for covering artificial alpine or nordic ski runs with snow and means for carrying out the method |
| 07/12/1988 | US4756100 Cross country ski track grooming device |
| 06/16/1988 | WO1988004394A1 Method for covering with snow artificial slopes for downhill or cross-country skiing, and means for implementing such method |
| 06/15/1988 | EP0271076A2 Actuator with two mechanically connected one-way hydraulic cylinders |
| 06/08/1988 | EP0270096A1 Snow track vehicle with a tool carrier |