| Patents for F01C 3 - Rotary-piston machines or engines with non-parallel axes of movement of co-operating members (679) |
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| 05/25/2004 | US6739852 Rotary engine and method for determining engagement surface contours therefor |
| 05/04/2004 | US6729295 Rotary piston engine |
| 04/27/2004 | US6725644 Combined input and output system for an internal combustion engine and turbine power plant |
| 04/21/2004 | EP1409845A1 Spherical fluid machine with flow control mechanism |
| 04/08/2004 | DE10335939A1 Rotary piston machine has cylindrical bore changing into spherical recess to receive rotors with centring device freely displaceable in axial and radial direction to compensate for production tolerances |
| 03/25/2004 | US20040055300 Rankine cycle generation of electricity |
| 03/16/2004 | US6705161 Positive displacement flow meter method and apparatus |
| 02/19/2004 | WO2004015245A1 Rotary piston machines comprising a displaceable inner housing |
| 02/12/2004 | DE10340670A1 Rotary piston engine for automotive, agricultural, marine industries has a housing with a supplementary piston |
| 01/21/2004 | CN1469967A 容积式转动机械 Volumetric rotating machinery |
| 01/08/2004 | US20040005235 Volumetric rotary machine |
| 01/06/2004 | US6672064 Rankine cycle generation of electricity |
| 12/18/2003 | US20030231971 Minimal contact seal positive displacement device method and apparatus |
| 12/03/2003 | EP1366289A1 Minimal contact seal positive displacement device method and apparatus |
| 10/21/2003 | US6634873 Method for determining engagement surface contours for a rotor of an engine |
| 10/14/2003 | US6632145 Fluid displacement pump with backpressure stop |
| 09/18/2003 | US20030172654 Rankine cycle generation of electricity |
| 08/14/2003 | WO2003067033A1 Swiveling piston engine |
| 08/13/2003 | EP1335109A1 Volumetric rotary machine |
| 07/29/2003 | US6598582 Rotary heat engine |
| 07/23/2003 | EP1164249A4 Spherical positive-displacement rotary machine |
| 07/08/2003 | US6588395 Rotary internal combustion engine—designed for future adiabatic operation |
| 06/19/2003 | US20030111040 Rotary piston engine |
| 06/17/2003 | US6579081 Spherical positive-displacement rotary machine |
| 06/11/2003 | CN1423724A Equipment with mutually interacting spiral teeth |
| 06/04/2003 | EP0819835B1 Reversible converter of direction of movement and device for displacing volumes using said converter |
| 05/28/2003 | EP0938626B1 Rotor-reciprocating combustion engine |
| 05/14/2003 | CN1108440C Rotor-reciprocating internal combustion engine |
| 05/07/2003 | EP1307634A1 Variable geometry toroidal engine |
| 04/15/2003 | US6547545 Rotary machine for a compression or an expansion of a gaseous working fluid |
| 04/15/2003 | US6546908 Variable geometry toroidal engine |
| 04/11/2003 | WO2002033223A1 Volumetric rotary machine |
| 04/11/2003 | CA2425909A1 Volumetric rotary machine |
| 04/02/2003 | EP1049856B1 Rotary machine |
| 03/11/2003 | US6530365 Fluid displacement pump with backpressure stop |
| 01/16/2003 | US20030012675 Equipment with mutually interacting spiral teeth |
| 01/08/2003 | EP1272738A1 Rotary piston engine |
| 01/08/2003 | EP1108116B1 Driving system for machinery, such as a motor, compressor etc. |
| 12/24/2002 | US6497564 Balanced rotors positive displacement engine and pump method and apparatus |
| 12/17/2002 | US6494698 Rotary piston machine having cycloid teeth |
| 11/27/2002 | CN1382244A Variable volume device and system therefor |
| 11/20/2002 | EP1257731A1 Equipment with mutually interacting spiral teeth |
| 11/14/2002 | US20020166535 Rotary internal combustion engine - designed for future adiabatic operation |
| 10/30/2002 | CN1093592C 旋转活塞式机器 A rotary piston machine |
| 10/23/2002 | EP1250515A1 Balanced rotors positive displacement engine and pump method and apparatus |
| 09/19/2002 | WO2002073006A1 Spherical fluid machine with flow control mechanism |
| 09/03/2002 | US6442935 Driving system for machinery, such as a motor, compressor etc. |
| 08/08/2002 | WO2002061274A1 Minimal contact seal positive displacement device method and apparatus |
| 07/31/2002 | EP1005604B1 Rotary piston machine |
| 07/18/2002 | US20020094293 Rotary engine and method for determining engagement surface contours therefor |
| 07/18/2002 | US20020092289 Combined input and output system for an internal combustion engine and turbine power plant |
| 07/17/2002 | EP1222365A1 A variable volume device and system therefor |
| 06/13/2002 | DE19654951C2 Rotationskolben-Verbrennungsmotor mit Ölzuführung für Schmier- und Kühlzwecke A rotary piston engine with oil supply for lubrication and cooling purposes |
| 06/06/2002 | US20020068002 Fluid displacement pump with backpressure stop |
| 05/21/2002 | US6390794 Rotary piston assembly |
| 03/28/2002 | WO2001061151B1 Equipment with mutually interacting spiral teeth |
| 03/28/2002 | US20020037228 Rotary piston machine |
| 03/27/2002 | CN1081723C Reversible converier of direction of movement and device for displacing volumes using said converter |
| 02/14/2002 | WO2002012679A1 Variable geometry toroidal engine |
| 02/14/2002 | US20020017099 Thermal engine |
| 01/24/2002 | WO2002006635A1 Balanced rotors positive displacement engine and pump method and apparatus |
| 12/19/2001 | EP1164249A1 Spherical positive-displacement rotary machine |
| 11/27/2001 | US6322334 Rotary piston system |
| 11/15/2001 | DE10022401A1 Circulation motor converting circular motion to rotary motion has two-stage casing with combustion and air compression channels of variable volume and zero point in each |
| 11/14/2001 | EP1153203A1 Internal combustion engine |
| 10/18/2001 | WO2001077498A1 Rotary piston engine |
| 10/18/2001 | US20010031215 Balanced rotors positive displacement engine and pump method and apparatus |
| 10/18/2001 | DE10015388A1 Rotationskolbenmotor Rotary piston engine |
| 10/09/2001 | US6298821 Bolonkin rotary engine |
| 10/04/2001 | EP1137864A1 Rotary machine for a compression or an expansion of a gaseous working fluid and a method for producing a rotor for such a machine |
| 08/23/2001 | WO2001061151A1 Equipment with mutually interacting spiral teeth |
| 08/21/2001 | US6276329 Rotary machine |
| 08/16/2001 | WO2001059260A1 Fluid displacement pump with backpressure stop |
| 08/14/2001 | US6273054 Internal combustion rotor-piston engine |
| 08/09/2001 | WO2000049276A9 Rotary piston machine |
| 08/02/2001 | US20010010801 Spherical fluid machine with flow control mechanism |
| 07/26/2001 | US20010009150 Fluid displacement pump with backpressure stop |
| 07/19/2001 | WO2001051770A1 Balanced rotors positive displacement engine and pump method and apparatus |
| 07/12/2001 | WO2001014693B1 A variable volume device and system therefor |
| 07/10/2001 | US6257195 Internal combustion engine with substantially continuous fuel feed and power output |
| 06/20/2001 | EP1108116A1 Driving system for machinery, such as a motor, compressor etc. |
| 06/07/2001 | WO2001040630A1 Internal combustion engine |
| 06/05/2001 | US6241493 Spherical fluid machine with control mechanism |
| 05/31/2001 | WO2001038696A1 Rotary piston assembly |
| 05/30/2001 | EP1102928A1 Thermal engine |
| 05/15/2001 | US6230681 Orbital engine |
| 03/01/2001 | WO2001014693A1 A variable volume device and system therefor |
| 01/31/2001 | EP0918922B1 Rotary piston system |
| 11/08/2000 | EP1049856A1 Rotary machine |
| 10/12/2000 | WO1998019060A3 Rotor-reciprocating combustion engine |
| 10/10/2000 | CA2059662C Toroidal hyper-expansion rotary engine, compressor, expander, pump and method |
| 09/28/2000 | WO2000057028A1 Spherical positive-displacement rotary machine |
| 09/26/2000 | US6122824 Method for manufacturing fluid compression/compressor rotor |
| 09/20/2000 | CN1267355A Rotary piston machine |
| 09/19/2000 | US6119649 Rotating piston engine |
| 08/24/2000 | WO2000049276A1 Rotary piston machine |
| 06/29/2000 | WO2000037779A1 Rotary machine for a compression or an expansion of a gaseous working fluid and a method for producing a rotor for such a machine |
| 06/29/2000 | CA2353988A1 Rotary machine for a compression or an expansion of a gaseous working fluid and a method for producing a rotor for such a machine |
| 06/27/2000 | US6079964 Fluid handling device |
| 06/14/2000 | EP1007822A1 Rotary engine and method for determining engagement surface contours therefor |