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| 9945230 | Silent gear pump or motor suppressing troubles of trapping fluid | Apr 16, 14 | Apr 17, 18 | Not available |
| 9920761 | Vacuum pump rotor for a vacuum pump having a roots pumping mechanism | Dec 14, 15 | Mar 20, 18 | EDWARDS LIMITED |
| 9909583 | Gerotor pump for a vehicle | Nov 02, 15 | Mar 06, 18 | FORD GLOBAL TECHNOLOGIES, LLC |
| 9874097 | Shroud for rotary engine | Aug 24, 15 | Jan 23, 18 | EXPONENTIAL TECHNOLOGIES, INC. |
| 9797339 | Hot-air engine | Apr 13, 12 | Oct 24, 17 | Not available |
| 9765774 | Internal gear pump | May 24, 13 | Sep 19, 17 | AISIN SEIKI KABUSHIKI KAISHA |
| 9765776 | Screw spindle pump | Jan 26, 15 | Sep 19, 17 | LEISTRITZ PUMPEN GMBH |
| 9714572 | Reduced noise screw machines | Apr 03, 13 | Jul 25, 17 | THE CITY UNIVERSITY |
| 9714655 | Rotary device and a method of designing and making a rotary device | Dec 17, 10 | Jul 25, 17 | EPICAM LIMITED |
| 9683521 | Thermal abatement systems | Apr 29, 15 | Jun 20, 17 | EATON CORPORATION |
| 9670778 | Rotary piston engine which acts as a pump, condenser or motor for a fluid | Feb 20, 13 | Jun 06, 17 | ROBERT BOSCH GMBH |
| 9567999 | Gear pump or hydraulic gear motor with helical toothing provided with hydraulic system for axial thrust balance | May 20, 14 | Feb 14, 17 | Marzocchi Pompe S.p.A. |
| 9435203 | Rotary positive displacement machine | Aug 19, 11 | Sep 06, 16 | South, Peter |
| 9404366 | Gear wheel with profile capable of meshing with semi-encapsulation in a geared hydraulic apparatus | May 27, 14 | Aug 02, 16 | SETTIMA MECCANICA S.R.L., MORSELLI, MARIO ANTONIO, |
| 9366137 | Fluid-pressure apparatus with gears having tooth profiles | Aug 09, 12 | Jun 14, 16 | SUMITOMO PRECISION PRODUCTS CO., LTD. |
| 9341063 | Fluid device with roll pockets alternatingly pressurized at different pressures | Oct 28, 11 | May 17, 16 | EATON CORPORATION |
| 9316102 | Rotors formed using involute curves | Apr 20, 12 | Apr 19, 16 | EXPONENTIAL TECHNOLOGIES, INC. |
| 9273556 | Rotary engine with rotary power heads | Jan 26, 15 | Mar 01, 16 | Not available |
| 9273568 | Coupling structure for vacuum exhaust device and vacuum exhaust system | Nov 16, 11 | Mar 01, 16 | ULVAC, INC. |