| Patents for B62K 13 - Cycles convertible to, or transformable into, other types of cycles or land vehicles (1,539) |
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| 07/29/2004 | DE19919175B4 Fahrradanhänger zum Transport von Kindern Bicycle trailer for transporting children |
| 07/28/2004 | EP1440876A1 Replaceable top tube for bicycles |
| 07/22/2004 | US20040140645 Tricycle |
| 07/21/2004 | CN2626836Y Parallel type coupler of bicycle |
| 07/21/2004 | CN2626835Y Tandem type coupler of bicycle |
| 07/21/2004 | CN2626834Y Following vehicle for children |
| 07/14/2004 | CN2625265Y Multifunctional mobile slide board |
| 07/01/2004 | WO2004054871A2 Folding bicycle |
| 07/01/2004 | US20040124596 Tracked bicycle |
| 06/17/2004 | US20040113395 Trolley for luggage or other loads |
| 06/17/2004 | DE10355869A1 Bicycle for altering seat position to improve and optimize driving system has handlebars, a pedal crank drive, a height-adjustable seat and a frame structure for fastening front and rear wheels |
| 06/09/2004 | CN2619862Y Detachable bicycle with two parallelly combined bicycles for two persons to ride |
| 06/08/2004 | US6746025 Rocker horse having movable configuration |
| 05/25/2004 | US6739420 Auxiliary wheel conversion assembly for a motorcycle |
| 05/20/2004 | US20040094911 Rocker horse having movable configuration |
| 05/06/2004 | DE10313539B3 Tricycle for transportation of loads has rear wheel drive and front wheel steering, and can be converted easily into load carrier |
| 04/22/2004 | WO2004033282A1 Bicycle |
| 03/30/2004 | US6712375 Stretchable bicycle |
| 03/25/2004 | US20040056452 Folding bicycle |
| 03/11/2004 | US20040046338 Convertible ski-supported vehicle |
| 02/25/2004 | EP1391374A1 Tricycle |
| 02/19/2004 | US20040031630 Mobility vehicle |
| 02/18/2004 | EP1389578A1 Front fork of a bicycle including an apparatus to adapt its geometry to a threewheeled tandem application |
| 02/18/2004 | CN1476400A Foldable stationary training bicycle |
| 02/10/2004 | US6688627 Bicycle which converts to a chair |
| 02/04/2004 | EP1385736A2 Automatic bicycle steering lock |
| 01/21/2004 | EP1381536A1 Trolley for luggage or other loads |
| 01/15/2004 | DE10224289A1 Fahrzeug, angetrieben mit Brennkraftmaschine oder Elektromotor Vehicle, driven by internal combustion engine or electric motor |
| 01/08/2004 | WO2004002811A1 Snowbike |
| 01/08/2004 | US20040005958 Exercise mode for a personal transporter device |
| 01/07/2004 | EP1378431A1 Bicycle convertible into a shopping trolley |
| 12/24/2003 | WO2003105967A1 Exercise modes for a personal transporter device |
| 12/24/2003 | CN2594128Y Assembled vehicle |
| 12/24/2003 | CN2594127Y Scooter with riding mechanism |
| 12/23/2003 | US6666469 Auxiliary device of monocycle |
| 12/23/2003 | US6666468 Convertible bicycle |
| 12/18/2003 | DE20313069U1 Snow blade attachment for child's pedal car has a coupling block attached to the front of the car and with a control bar to raise and lower the blade |
| 12/16/2003 | US6663117 Tracked bicycle |
| 12/11/2003 | WO2003101817A1 Vehicle driven by an internal combustion engine or an electric motor |
| 12/04/2003 | US20030222417 Convertible ski-supported vehicle |
| 11/20/2003 | WO2003095037A1 Bicycle accessory |
| 11/20/2003 | US20030214113 Vehicle having independently articulating rear frame members |
| 10/29/2003 | EP0966383B1 Bicycle towing device |
| 10/29/2003 | CN1125744C Folding trailer gooseneck |
| 10/23/2003 | WO2003086848A1 Folding bicycle |
| 10/22/2003 | CN1449963A Collapsible bicycle |
| 10/16/2003 | WO2003084807A1 Separable bicycle |
| 10/15/2003 | EP1352821A1 Stretchable bicycle |
| 10/15/2003 | CN1448309A Bicycle trailer and bicycle with trailer |
| 10/03/2003 | CA2380725A1 The granny bike conversion kit |
| 10/01/2003 | CN2576584Y Multifunction telescopic folding bicycle |
| 10/01/2003 | CN2576583Y Bicycle with function of scooter |
| 09/30/2003 | US6626441 Bicycle ski link assembly |
| 09/25/2003 | US20030178806 Automated bicycle steering lock |
| 09/23/2003 | US6623021 Automated bicycle steering lock |
| 09/18/2003 | CA2377041A1 Amphibious bicycle vehicle |
| 09/12/2003 | WO2003074352A1 Tandem bicycle adapter |
| 09/03/2003 | CN2570161Y Bicycle trailer and bicycle with trailer |
| 09/03/2003 | CN1439566A Artificial horse |
| 09/02/2003 | US6612597 Tandem bicycle adapter |
| 09/02/2003 | US6612389 Combination trailer and two-wheel conversion utility for a motorcycle |
| 08/28/2003 | WO2003070549A1 Folding stationary bicycle |
| 08/28/2003 | US20030159872 Combination trailer and two-wheel conversion utility for a motorcycle |
| 08/28/2003 | US20030159632 Adaptive agricultural machine |
| 08/27/2003 | CN2568529Y Double-person ridding bicycle |
| 08/27/2003 | CN2568528Y Bassinet |
| 08/20/2003 | CN2567129Y Bicycle rided by two-person |
| 08/20/2003 | CN2567128Y Simple bicycle capable of riding with one-wheel |
| 08/13/2003 | CN2565733Y Side three-wheel double bicycle |
| 08/13/2003 | CN2565732Y Improvd one-wheel and double-wheel dual-purpose bicycle |
| 08/05/2003 | US6602015 Removable bicycle beam |
| 08/05/2003 | US6601862 Tricycle and intermediate frame for tricycle |
| 07/31/2003 | US20030141696 Stretchable bicycle |
| 07/30/2003 | EP1331166A2 Wheeled vehicle |
| 07/24/2003 | WO2003059723A1 Convertible bicycle |
| 07/17/2003 | US20030132599 Auxiliary device of monocycle |
| 07/16/2003 | CN2560548Y Hand-held portable foldable bicycle |
| 07/16/2003 | CN2560545Y Relaxing four-wheel pedal cycle |
| 07/10/2003 | US20030127821 Convertible bicycle |
| 06/24/2003 | US6581949 Cycle scooter |
| 06/18/2003 | DE10202981C1 Multipurpose bicycle/caddie has two wheels, steering shaft and holder tube with clamp units for connection to handlebars, for wheels to be located behind or parallel to each other |
| 06/18/2003 | DE10159547C1 Kopplungsvorrichtung für Fahrräder Coupling device for bicycles |
| 06/18/2003 | CN2556110Y Baby's tricycle with rocking support |
| 06/18/2003 | CN2556109Y Multi-functional body-building bicycle |
| 06/18/2003 | CN1424932A Reconfigurable toy cycle |
| 06/11/2003 | EP1318070A2 Coupling device for bicycles |
| 05/22/2003 | WO2003042027A1 Bicycle frame convertible into a hammock support |
| 05/13/2003 | US6561533 Bicycle towing and hitching apparatus |
| 05/01/2003 | US20030080522 Tracked bicycle |
| 04/29/2003 | US6554308 Recumbent vehicle & apparatus for forming same |
| 04/29/2003 | US6554294 Ski bicycle and ski system for a bicycle |
| 04/23/2003 | CN2546314Y Auxiliary riding structure for monocycle |
| 04/23/2003 | CN2546313Y 多功能自行车 Multifunction Bicycle |
| 04/10/2003 | WO2003029070A1 Adaptable traction system of a vehicle |
| 04/01/2003 | US6540569 Integrated utility personal vehicle |
| 03/27/2003 | US20030060095 Integrated utility personal vehicle |
| 03/27/2003 | US20030057751 Dude tandem |
| 03/27/2003 | US20030057672 Tandem bicycle adapter |
| 03/13/2003 | WO2002076814A3 Automatic bicycle steering lock |
| 03/13/2003 | US20030047930 Vehicle |