Class F01B : MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
Subclass 5/00: Reciprocating-piston machines or engines with cylinder axes arranged substantially tangentially to a circle centred on main shaft axis
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11261733 | Four-stroke rotary- piston engine with adjustable compression ratio and adjustable valve control times | Oct 16, 15 | Mar 01, 22 | Not available |
| 11092070 | Internal combustion engine | Feb 19, 18 | Aug 17, 21 | NEWLENOIR LIMITED |
| 10704390 | Housing wheel engine with method of epitrochoid | Jun 06, 16 | Jul 07, 20 | Not available |
| 10260413 | Multi-stage combustion hot-gas/steam pressure-differential parallel-cylinder opposed-piston engine for natural gas, hydrogen and other fuels with integrated electric generator | Jun 27, 16 | Apr 16, 19 | Not available |
| 10227918 | Polygon oscillating piston engine | Apr 11, 13 | Mar 12, 19 | Not available |
| 9546654 | Hydraulic motor-pump with fixed or variable displacement | Feb 04, 14 | Jan 17, 17 | Not available |
| 9441538 | Engine usable as a power source or pump | Sep 30, 11 | Sep 13, 16 | Grace Motor Works Limited |
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