| 2023/0400,097 | PISTON ASSEMBLY, AIR CYLINDER AND APPARATUS FOR PROCESSING SUBSTRATE | Jan 21, 23 | Dec 14, 23 | Not available |
| 2022/0260,034 | OPEN-FACED PISTON ASSEMBLY | Mar 21, 22 | Aug 18, 22 | Not available |
| 2020/0109,781 | DETONATION RESISTANT PISTON | Oct 08, 19 | Apr 09, 20 | Not available |
| 2019/0368,606 | PISTON WITH COOLING OIL DIVERTER | Jun 05, 18 | Dec 05, 19 | MAHLE International GmbH |
| 2019/0331,222 | PISTON WITH OPTIMIZED OIL RING NEGATION | Apr 26, 18 | Oct 31, 19 | Not available |
| 2019/0271,396 | ROTATING PISTON FOR PUMPS | May 20, 19 | Sep 05, 19 | Not available |
| 2018/0216,733 | PISTON FOR AN INTERNAL COMBUSTION ENGINE | Sep 13, 16 | Aug 02, 18 | Not available |
| 2017/0284,544 | PISTON WITH VARIABLE DEPTH GROOVE ROOT | Mar 30, 16 | Oct 05, 17 | ELECTRO-MOTIVE DIESEL, INC. |
| 2017/0254,417 | PISTON ARRANGEMENT | Sep 04, 15 | Sep 07, 17 | Not available |
| 2017/0191,563 | ROTATING PISTON FOR PUMPS | Dec 30, 16 | Jul 06, 17 | GRACO MINNESOTA INC. |
| 2016/0273,653 | PISTON | Dec 12, 13 | Sep 22, 16 | KAWASAKI JUKOGYO KABUSHIKI KAISHA |
| 2016/0025,112 | ACCUMULATOR MEMBRANE FOR A HYDRAULIC HAMMER | Aug 31, 15 | Jan 28, 16 | Not available |
| 2016/0017,998 | Self Cleaning Pistons | May 12, 15 | Jan 21, 16 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 2015/0362,070 | Piston Device and Pressure Regulator Using Same | Jan 24, 14 | Dec 17, 15 | EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC. |
| 2015/0354,497 | PISTON ASSEMBLY FOR A RECIPROCATING ENGINE | Jun 06, 14 | Dec 10, 15 | GENERAL ELECTRIC COMPANY |
| 2015/0337,869 | SELF-ORIENTING PISTON SPRING ACCUMULATOR | May 20, 14 | Nov 26, 15 | FORD GLOBAL TECHNOLOGIES, LLC |
| 2015/0323,072 | ACTUATOR WITH SCREW-IN GLAND AND DETENT STRUCTURE | May 06, 15 | Nov 12, 15 | LIPPERT COMPONENTS, INC. |
| 2015/0267,812 | PISTON HOUSING SYSTEM AND APPARATUS | Mar 21, 14 | Sep 24, 15 | GOODRICH CORPORATION |
| 2015/0226,376 | REPLACEABLE SLEEVES USED IN DISTRIBUTION BLOCKS | Feb 07, 14 | Aug 13, 15 | Not available |
| 2015/0219,215 | PISTON OF AXIAL PISTON PUMP MOTOR, CYLINDER BLOCK OF AXIAL PISTON PUMP MOTOR, AND AXIAL PISTON PUMP MOTOR | Feb 20, 14 | Aug 06, 15 | KAWASAKI JUKOGYO KABUSHIKI KAISHA |