| 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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| 12/04/1990 | US4974283 Hand-guided sweeping machine |
| 11/13/1990 | US4969675 Portable pet refuse scoop |
| 11/08/1990 | DE3914423A1 Mounting snow plough on motor vehicle - involves set of parallel links and tension springs |
| 11/07/1990 | CN2065203U Electrostatic dust absorption sweeping machine |
| 11/04/1990 | WO1990013712A1 Ground surface debris collection mat |
| 11/04/1990 | CA2053222A1 Ground surface debris collection mat |
| 10/30/1990 | US4966400 Device for removal of animal droppings and debris |
| 10/25/1990 | DE3912885A1 Road surface milling machine - has suction device which removes broken out material straight from milling roller |
| 10/24/1990 | EP0393026A1 Device for collecting refuse, in particular canine excrements |
| 10/23/1990 | US4964188 Clean up device |
| 10/18/1990 | WO1990012153A1 Vehicle-mounted device for applying an air blast to road surfaces |
| 10/16/1990 | US4962956 Waste collection device |
| 10/16/1990 | US4962598 Apparatus for mounting implements on vehicles |
| 10/11/1990 | DE3910638A1 Device for picking up dog excrement |
| 10/10/1990 | EP0391457A1 Floor cleaning machine with improved brush pressure control |
| 10/10/1990 | EP0391010A1 Sweeping machine |
| 10/09/1990 | US4961762 Structurally reinforced, self-aligning panel filter apparatus with associated clamping, face sealing and backflushing structure |
| 10/03/1990 | EP0337048B1 Railway machine for vacuum cleaning a track superstructure |
| 09/27/1990 | DE4018083A1 Implement for sweeping up leaves - comminutes and compacts leaves in container |
| 09/27/1990 | DE3909171A1 Excrement-box disposal point |
| 09/27/1990 | DE3909120A1 Snow-clearing vehicle |
| 09/26/1990 | CN2062740U Garbage cleaning car |
| 09/25/1990 | US4959154 Contacting with wood chips |
| 09/25/1990 | US4958871 Hand tool for picking up animal droppings |
| 09/25/1990 | US4958400 Line cleaning apparatus |
| 09/20/1990 | WO1990010754A1 Self-propelled utility vehicle for cleaning beaches |
| 09/20/1990 | DE3908611A1 Gripper for picking up and removing animal excrement |
| 09/19/1990 | EP0387794A1 Self-propelled utility vehicle for cleaning beaches |
| 09/18/1990 | US4957170 Curb and gutter shovel |
| 09/18/1990 | US4957131 Animal waste flushing assembly |
| 09/18/1990 | CA1274083A1 Method for the control of dust using methacrylate containing emulsions and compositions |
| 09/11/1990 | US4955107 Suction cleaner |
| 08/29/1990 | CN2061184U Garbage-cleaning can with back cover |
| 08/28/1990 | US4951987 Refuse collecting tool |
| 08/28/1990 | US4951347 With recirculating air flow |
| 08/28/1990 | US4951342 Street sweeping drag shoe |
| 08/23/1990 | DE3905207A1 Mounted sweeping machine |
| 08/23/1990 | CA2010471A1 Squeeze mop |
| 08/22/1990 | EP0383379A1 Washing vehicle |
| 08/21/1990 | CA1273029A1 Thrust assisted inclined conveyor system for transversely clearing a traveled surface |
| 08/21/1990 | CA1272858A1 Cleaning-device combination for cleaning oil- contaminated shore water and shore area |
| 08/16/1990 | EP0381904A1 Cleaning device for overhanging surfaces such as ceilings and arches |
| 08/14/1990 | US4947940 Apparatus and method for removing oil spots from a surface |
| 07/31/1990 | US4944393 Animal repellent trash bag |
| 07/26/1990 | WO1990007873A1 Disposable container for solid animal wastes |
| 07/26/1990 | DE3911291C1 Apparatus for sanding paved surfaces |
| 07/26/1990 | DE3901080A1 Baggable excrement stick |
| 07/25/1990 | EP0378959A1 Improved excrement collector |
| 07/24/1990 | US4942639 Bulky dust sweeper |
| 07/18/1990 | EP0378025A1 Apparatus and process for cleaning a horizontal surface |
| 07/10/1990 | US4940289 Scabbler for scabbling floors contaminated with hazardous materials |
| 07/03/1990 | US4938516 Retrieving tool |
| 07/03/1990 | US4938239 Mobile track bed cleaning machine and method |
| 06/13/1990 | EP0372258A2 Process and apparatus for adjusting a preselected cleaning-width of a rotating cylindrical brush |
| 06/13/1990 | DE3841178A1 Method and apparatus for cleaning surfaces |
| 06/13/1990 | DE3841177A1 Method and apparatus for setting a preselected sweeping level of a revolving brush |
| 06/05/1990 | US4930530 Leaf loading method |
| 05/30/1990 | CN2057676U Cleaning tricycle |
| 05/29/1990 | US4928341 Litter picking conversion kit |
| 05/22/1990 | US4926517 Sweeper |
| 05/22/1990 | CA1269211A2 Vaccuum refuse collector |
| 05/16/1990 | EP0368021A1 Surface overturning apparatus |
| 05/10/1990 | DE3837939A1 Device for sweeping surfaces and/or mowing lawn areas |
| 05/09/1990 | EP0367732A1 Mini sucking battery motorbrush |
| 05/09/1990 | EP0367276A1 Road sweeper with suction means |
| 05/01/1990 | CA1268306A1 Mobile vacuum trash collector |
| 04/26/1990 | DE3925863A1 Folding foil stiffened with wire - forms scoop and bag for collecting dog excrement from pavements |
| 04/18/1990 | EP0364348A1 Vehicle moving on two crossing paths of travel separated by a difference in level, such as a railway and a siding on a platform |
| 04/17/1990 | CA1267782A1 Device to be adapted to a pusher vehicle for gathering, picking up and transporting objects such a waste strewn on the ground |
| 04/12/1990 | DE3834163A1 Closure device for a sweeping machine |
| 04/10/1990 | US4914774 Leaf loading machine for use with towing machine |
| 04/10/1990 | US4914773 Cleaning apparatus |
| 04/04/1990 | EP0361117A2 Waste pick-up device, especially for dog excrements |
| 04/03/1990 | US4912798 Sweeper cylinder on a streetcleaning vehicle |
| 03/28/1990 | EP0359806A1 Refuse collector |
| 03/21/1990 | CN2054805U Multi-purpose jet blowing car |
| 03/20/1990 | US4909554 Litter picker |
| 03/20/1990 | US4909553 Dog feces disposal implement kit |
| 03/13/1990 | US4907404 Cutting arrangement |
| 03/08/1990 | DE3910228A1 Suction nozzle for continuous drainage of sandy soil and granular substances |
| 03/07/1990 | CN2054046U Automatic duster |
| 02/27/1990 | US4904126 Truck mounted vacuum loading apparatus |
| 02/27/1990 | US4903368 Road sweeping vehicles |
| 02/22/1990 | DE3827747A1 Disposable folding-bag shovel for removing dog excrement |
| 02/20/1990 | CA1265901A1 Cleaning vehicles |
| 02/15/1990 | DE3827251A1 Nozzle head |
| 02/13/1990 | US4900077 Dog litter cleanup device |
| 02/07/1990 | CN2052419U Cleanning car of suck-cleanner |
| 02/01/1990 | DE3922134A1 Sweeping machine |
| 01/31/1990 | EP0352570A1 Device for treating surfaces and especially for cleaning floors and the like |
| 01/30/1990 | US4896912 Sanitary method and apparatus for waste collection and disposal |
| 01/25/1990 | DE3824710A1 Method and apparatus for cleaning dust and dirt from grounds strewn with granular material |
| 01/24/1990 | EP0351600A1 Disposable plastic bags |
| 01/23/1990 | US4895476 Brushing device and method |
| 01/16/1990 | US4893368 Driveway scrubber |
| 01/11/1990 | DE3823296A1 Apparatus for removing dog excrement |
| 01/11/1990 | DE3823294A1 Apparatus for removing dog excrement |
| 01/11/1990 | DE3822840A1 Gripper for picking up and removing animal excreta |
| 01/10/1990 | CN1038582A Filtering and collecting device of solid and powder refuse for industrial and civil suction apparatus |
| 01/09/1990 | US4891858 Roadworking apparatus |