| Patents for E01H 1 - Removing undesirable matter from roads or like surfaces, with or without moistening of the surface (8,945) |
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| 07/21/1992 | US5131704 Apparatus for hygienic collection and disposal of animal waste |
| 07/14/1992 | US5129125 Cleaning machine |
| 07/14/1992 | US5129124 Cleaning machine |
| 07/11/1992 | WO1992012298A1 Sweeping appliance for excavators |
| 07/07/1992 | CA1304545C Pavement-cleaning vehicle |
| 06/30/1992 | US5125128 Street sweeping machine |
| 06/25/1992 | WO1992010614A1 A sweeping machine |
| 06/24/1992 | CN2108124U Multifunction road surface cleaning scraper |
| 06/24/1992 | CN2108123U Hand cleaning device |
| 06/10/1992 | CN2106851U Miniature road sweeper |
| 05/29/1992 | WO1992008345A1 A device to collect and dispose of dogs' excrements or other refuse |
| 05/26/1992 | US5115579 Removing water from a ground surface |
| 05/26/1992 | CA1301663C Street sweeper machine with trash pick-up and transport capabilities |
| 05/20/1992 | EP0485810A1 Double-purpose motor vehicle for cleaning roads and rail tracks, in particular of railways |
| 05/20/1992 | CN2104879U Cleaner |
| 05/19/1992 | US5113548 Surface sweeping machine with over-the-cab hopper dumping |
| 05/19/1992 | CA1300828C Portable blower/vacuum system |
| 05/19/1992 | CA1300827C Vacuum refuse collector |
| 05/06/1992 | CN2103595U Multipurpose machine for road surface maintenance |
| 05/05/1992 | CA1299829C Cleaning vehicles |
| 05/05/1992 | CA1299824C Means for cleaning a road, airfield or equivalent surface |
| 04/29/1992 | EP0482293A1 Groundworking machine and undercarriage |
| 04/28/1992 | US5108471 Single mode wet and dry vacuum vehicle |
| 04/28/1992 | US5108221 Roadway conditioning apparatus |
| 04/22/1992 | CN2102309U Health cleaning machine |
| 04/21/1992 | US5106424 Decontamination method and use of contaminant |
| 04/01/1992 | CN2100417U High cleanliness road sweeping vehicle |
| 04/01/1992 | CN2100416U Road sweeper |
| 03/25/1992 | EP0476483A1 Universal motor sweeper unit |
| 03/18/1992 | EP0453513A4 Disposable container for solid animal wastes |
| 03/04/1992 | CN2097852U Sweeping and mopping machine |
| 03/04/1992 | CN2097851U Stilts type street cleaning machine |
| 03/03/1992 | CA1296493C2 Mobile vacuum trash collector |
| 02/26/1992 | EP0471689A1 Ground surface debris collection mat. |
| 02/26/1992 | CN2097221U Road-sweeper |
| 02/25/1992 | US5090088 Deck-mounted leaf blower |
| 02/20/1992 | WO1992002690A1 Machine or implement |
| 02/20/1992 | WO1992002689A1 Cleaning machine |
| 02/18/1992 | CA1295791C Street cleaning device for collecting leaves and debris |
| 02/13/1992 | DE4025461A1 Self-propelled ground treatment vehicle - has drive motor between sweeping roller and rear axle |
| 02/13/1992 | DE4024291A1 Mobile sweeping attachment for commercial vehicle - consists of row of rotary brushes fixed to horizontal rail set at angle to direction of travel |
| 02/12/1992 | EP0470560A1 Floor treatment vehicle |
| 02/12/1992 | CN2095882U Semi-automatic garbage cleaning car |
| 02/06/1992 | DE4024662A1 Brushing sand into lawn - involves power driven rotating hub with spring-loaded or weighted arms and brush elements |
| 02/06/1992 | DE4024641A1 Picking up animal excrement hygienically - involves pair of tongs with extending and spreading claws operated by slider |
| 02/06/1992 | DE4024477A1 Steerable trailer with working attachment - has both axles steered to track working attachment accurately behind front vehicle attachment |
| 01/28/1992 | CA1294743C Apparatus for picking up dog excrement |
| 01/23/1992 | WO1992001117A1 A device for picking up objects |
| 01/23/1992 | DE4021549A1 Machine for cleaning and levelling verges - comprises motor-driven milling and delivery worm fitted on front of narrow track road vehicle |
| 01/22/1992 | EP0467269A2 Cleaning vehicles |
| 01/22/1992 | CN1058063A Principle of road sweeper with dust filtering drum |
| 01/21/1992 | US5082065 Quick attach implement coupler |
| 01/09/1992 | WO1991019051A3 Cleaning and other vehicles |
| 01/09/1992 | DE4021312A1 Hygienic removal of animal excreta - involves device lik ladies folding umbrella with central stem and spring-loaded slider with attached stays |
| 01/09/1992 | DE4021215A1 Battery-operated suction collection device for dog excrement - has disposable collection bag coupled to suction pipe |
| 01/07/1992 | US5078161 High speed, high pressure water jets |
| 01/07/1992 | US5077920 Power broom assembly |
| 01/02/1992 | EP0269632B1 Cleaning vehicles |
| 01/02/1992 | DE4020042A1 Device for manual, hygienic removal of canine excrement - comprises hinged parts fitting the human hand working in conjunction with a bag |
| 12/27/1991 | EP0333849B1 Washing device mounted on a motor vehicle and comprising a rotary washing arm which delivers jets of pressurized hot water for cleaning various surfaces |
| 12/26/1991 | WO1992000500A1 Apparatus for determining an area coverage rate |
| 12/26/1991 | WO1992000424A1 Apparatus and method for removing oil spots from a surface |
| 12/26/1991 | CA2071868A1 Apparatus for determining an area coverage rate |
| 12/25/1991 | CN1057308A Stilt type street cleaner |
| 12/18/1991 | EP0462076A1 Motorised device for cleaning large surfaces |
| 12/18/1991 | CN2090831U Multipurpose floor duster |
| 12/17/1991 | US5072485 Surface sweeping machine with over-the-cab hopper dumping |
| 12/12/1991 | WO1991019053A1 Cleaning and other vehicles |
| 12/12/1991 | WO1991019052A1 Cleaning and other vehicles |
| 12/12/1991 | WO1991019051A2 Cleaning and other vehicles |
| 12/12/1991 | WO1991019050A1 Cleaning and other vehicles |
| 12/12/1991 | WO1991019049A1 Cleaning and other vehicles |
| 12/12/1991 | WO1991019048A1 Cleaning and other vehicles |
| 12/12/1991 | WO1991019047A1 Cleaning and other vehicles |
| 12/12/1991 | WO1991019046A1 Control means for cleaning vehicle |
| 12/12/1991 | WO1991018781A1 Cleaning and other vehicles |
| 12/04/1991 | EP0459903A1 Assembly of modules and frame parts constituting a chassis of a light-weight vehicle such as a small road sweeping machine |
| 12/04/1991 | CN2089944U 街道清扫车 Street sweeper |
| 11/28/1991 | DE4016154A1 Frontal sweeping attachment for carrier vehicle - has diametrically adjustable rotary brush operating in casing and with receptacle for dirt |
| 11/21/1991 | EP0457363A2 Cleaning vehicles |
| 11/21/1991 | EP0456955A1 Handtool for removing animal droppings |
| 11/21/1991 | DE4016153A1 Motorised rotary sweeping brush - is located between swinging shafts and between forward pivot arm and rear scraper blades |
| 11/14/1991 | DE4014854A1 Removing oil and fat from concrete, cement or stone floor - or other porous surface by brushing on nutrient soln. contg. Pseudomonas Putidans and feeding compressed air |
| 11/13/1991 | CN2088563U Manpower floor cleaning machine |
| 11/12/1991 | US5064233 Disposable collection device for animal litter |
| 11/12/1991 | US5063713 Surface abrading and particle collection device |
| 11/06/1991 | CN2088122U Chain road-sweeping machine |
| 11/05/1991 | US5062868 Method and apparatus for unloading mobile vacuum loaders |
| 10/31/1991 | WO1991015948A1 Disposable waste scooper |
| 10/31/1991 | DE4013530A1 Plate-type sweeping machine broom - has elastic plastics sleeves fitting closely around brushes below mounting disc |
| 10/30/1991 | EP0454074A1 Container for picking up and removing animal faeces located on the ground |
| 10/30/1991 | EP0453513A1 Disposable container for solid animal wastes |
| 10/30/1991 | CN2087632U Cleaning car |
| 10/29/1991 | US5060335 Apparatus for cleaning the surface of a railway rail |
| 10/29/1991 | US5060334 Street sweeper |
| 10/28/1991 | CA2040559A1 Device for picking up excrement |
| 10/24/1991 | DE4031377A1 Explosive dust sweeping machine - hurls by rotary drum into trough with conveyor discharging into open hopper |
| 10/23/1991 | EP0453177A1 Unattended air cleaning system for surface maintenance machine |
| 10/23/1991 | EP0452980A2 Cleaning vehicles |
| 10/23/1991 | EP0452979A2 Cleaning vehicles |