F01C 1/077

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2024/0141,789 ROTATIONAL ENGINE WITH INNER AND OUTER RINGSMar 03, 23May 02, 24Not available
2022/0018,255 ROTATIONAL ENGINESep 29, 21Jan 20, 22Duplicent, LLC
2022/0003,117 Rotary Piston Machine and Method for Producing a Seal in a Rotary Piston MachineOct 14, 19Jan 06, 22Not available
2020/0392,845 SPHERICAL ENERGY CONVERTERJan 08, 19Dec 17, 20Not available
2020/0088,034 MECHANISM WITH ROTATING VANESApr 09, 18Mar 19, 20Not available
2018/0371,909 A ROTARY ENGINE WITH ITS PASSIVE PISTON RUNNING AT VARIABLE SPEEDNov 01, 16Dec 27, 18Not available
2012/0134,860 "TURBOMOTOR" ROTARY MACHINE WITH VOLUMETRIC EXPANSION AND VARIANTS THEREOFNov 06, 09May 31, 12Not available
2011/0162,617 A DUAL-ROTOR ENGINEMay 26, 09Jul 07, 11Not available
2010/0251,986 Heterocentric distributive oscillating transmission mechanism and toroidal hermetic rotary engine as its applicationMar 26, 10Oct 07, 10Not available
2001/0046,446 Cat and mouse type rotary device utilizing grooves and rods for power conveyanceMay 29, 01Nov 29, 01Not available
2001/0043,876 Rotary machineJun 25, 01Nov 22, 01DAR ENGINES, LTD.