| 2021/0131,285 | EXTERNAL GEAR MACHINE | Dec 06, 17 | May 06, 21 | Not available |
| 2015/0308,272 | ROTARY PISTON ENGINE, IN PARTICULAR WITH ROTARY PISTONS CIRCULATING ABOUT THE IGNITION CHAMBER | Aug 02, 12 | Oct 29, 15 | BRANDS & PRODUCTS IPR-HOLDING GMBH & CO. KG, RB HOLDING GMBH, |
| 2014/0322,060 | FLUID-PRESSURE APPARATUS | Aug 09, 12 | Oct 30, 14 | SUMITOMO PRECISION PRODUCTS CO., LTD. |
| 2014/0023,545 | INLET CUTBACKS FOR HIGH SPEED GEAR PUMP | Jul 23, 12 | Jan 23, 14 | HAMILTON SUNDSTRAND CORPORATION |
| 2013/0302,201 | Gear Pump | May 14, 12 | Nov 14, 13 | Not available |
| 2013/0025,365 | Positive displacement flow meter | Jul 28, 11 | Jan 31, 13 | Not available |
| 2013/0028,752 | PRIMING OF GEAR PUMP IN ALTERNATIVE ATTITUDES | Jul 26, 11 | Jan 31, 13 | HAMILTON SUNDSTRAND CORPORATION |
| 2013/0004,356 | GEARED HYDRAULIC MACHINE | Dec 06, 10 | Jan 03, 13 | INTERPUMP GROUP S.P.A. |
| 2012/0328,462 | Positive Displacement Rotary Pumps with Improved Cooling | Jun 23, 11 | Dec 27, 12 | Wright Flow Technologies Limited |
| 2012/0258,006 | External Gear Pump for Hot Cooking Oil | Apr 11, 11 | Oct 11, 12 | VIKING PUMP, INC. |
| 2012/0219,448 | ADJUSTABLE ROTARY PUMP WITH REDUCED WEAR | May 04, 12 | Aug 30, 12 | SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBH |
| 2012/0207,634 | LUBRICANT CONTROL VALVE FOR A SCREW COMPRESSOR | Feb 10, 11 | Aug 16, 12 | TRANE INTERNATIONAL INC. |
| 2012/0207,638 | ROTARY PISTON PUMP | Sep 08, 10 | Aug 16, 12 | HUGO VOGELSANG MASCHINENBAU GMBH |
| 2012/0195,783 | Noise and shock reduction in rotary positive displacement blowers | Jan 24, 11 | Aug 02, 12 | TUTHILL CORPORATION |
| 2012/0183,427 | LUBE SPACER BEARING WITH PRESSURE LOADING CHANNEL | Jan 18, 11 | Jul 19, 12 | HAMILTON SUNDSTRAND CORPORATION |
| 2012/0177,526 | AIR COMPRESSOR | Dec 29, 11 | Jul 12, 12 | KABUSHIKI KAISHA TOYOTA JIDOSHOKKI |
| 2012/0160,209 | TURBINE HAVING COOPERATING AND COUNTER-ROTATING ROTORS IN A SAME PLANE | Dec 22, 10 | Jun 28, 12 | Not available |
| 2012/0156,080 | Hydraulic Toothed Wheel Machine | Feb 25, 10 | Jun 21, 12 | ROBERT BOSCH GMBH |
| 2012/0141,316 | GEAR ROOT GEOMETRY FOR INCREASED CARRYOVER VOLUME | Dec 06, 10 | Jun 07, 12 | HAMILTON SUNDSTRAND CORPORATION |
| 2012/0114,514 | Hydraulic Toothed Wheel Machine | Feb 25, 10 | May 10, 12 | ROBERT BOSCH GMBH |