| 2022/0178,328 | Near-Net Shape Single-Piece Piston Blanks | Feb 21, 22 | Jun 09, 22 | KS Kolbenschmidt US, Inc. |
| 2020/0346,278 | PRODUCTION METHOD, PISTON BLANK, PISTON AND AXIAL PISTON MACHINE HAVING SAID PISTON | Aug 22, 18 | Nov 05, 20 | Schaeffler Technologies AG & Co. KG |
| 2019/0344,330 | HOT FORMING OF COOLING GALLERIES IN STEEL PISTONS | Jul 24, 19 | Nov 14, 19 | Not available |
| 2019/0178,204 | METHODS FOR FORGING A PISTON BLANK AND RESULTANT NEAR-NET SHAPE SINGLE-PIECE PISTON BLANKS | Feb 19, 19 | Jun 13, 19 | KS Kolbenschmidt US, Inc. |
| 2019/0091,757 | HOT FORMING OF COOLING GALLERIES IN STEEL PISTONS | Nov 29, 18 | Mar 28, 19 | Not available |
| 2019/0076,913 | PISTON PIN AND METHOD FOR MANUFACTURING PISTON PIN | Jan 20, 17 | Mar 14, 19 | Hitachi Automotive Systems, Ltd. |
| 2019/0022,739 | Piston Having Three Ring Grooves And A Further Groove Having A Joint | Jan 20, 17 | Jan 24, 19 | Not available |
| 2018/0243,817 | Piston of an Internal Combustion Engine Having Alkali Metal Cooling and Method for Production Thereof | Aug 29, 16 | Aug 30, 18 | Not available |
| 2017/0232,501 | HOT FORMING OF COOLING GALLERIES IN STEEL PISTONS | Feb 07, 17 | Aug 17, 17 | Not available |
| 2017/0173,665 | Method of Producing a Cooling Channel System for Internal Combustion Engines and Piston Produced in This Way | Mar 06, 17 | Jun 22, 17 | KS KOLBENSCHMIDT GMBH |
| 2017/0175,836 | PISTON MANUFACTURING DEVICE, PISTON MANUFACTURING METHOD, PISTON AND DISC BRAKE | Apr 09, 15 | Jun 22, 17 | HITACHI AUTOMOTIVE SYSTEMS, LTD. |
| 2015/0322,943 | METHOD FOR PRODUCING A PENDULUM OF A PENDULUM SLIDE CELL PUMP | May 06, 15 | Nov 12, 15 | MAHLE INTERNATIONAL GMBH |
| 2015/0020,566 | FORGING DEVICE FOR THE PRODUCTION OF A PISTON BLANK, AND METHOD FOR THE PRODUCTION OF THE PISTON BLANK BY MEANS OF SAID FORGING DEVICE | Oct 05, 12 | Jan 22, 15 | MAHLE INTERNATIONAL GMBH |
| 2014/0317,924 | METHOD FOR BONDING PISTON COMPONENTS | Apr 30, 14 | Oct 30, 14 | MAHLE INTERNATIONAL GMBH |
| 2014/0202,001 | METHOD FOR THE PRODUCTION OF A PISTON FOR AN INTERNAL COMBUSTION ENGINE | Mar 25, 14 | Jul 24, 14 | MAHLE INTERNATIONAL GMBH |
| 2013/0333,557 | LIGHTWEIGHT ENGINE POWER CELL ASSEMBLY | Jun 14, 12 | Dec 19, 13 | MAHLE INTERNATIONAL GMBH |
| 2013/0133,610 | METHOD FOR PRODUCING A COOLING CHANNEL SYSTEM FOR INTERNAL COMBUSTION ENGINES AND PISTON PRODUCED IN THIS WAY | Jul 18, 11 | May 30, 13 | KS KOLBENSCHMIDT GMBH |
| 2013/0092,024 | METHOD FOR SIMULTANEOUSLY PRODUCING FIRST AND SECOND PISTON PARTS | Jun 06, 12 | Apr 18, 13 | MAHLE INTERNATIONAL GMBH |
| 2013/0036,608 | FORGING METHOD FOR PRODUCING A PISTON OR PISTON SKIRT | Jun 26, 12 | Feb 14, 13 | MAHLE INTERNATIONAL GMBH |
| 2013/0000,120 | METHOD FOR PRODUCING AN ALUMINUM PISTON FOR AN INTERNAL COMBUSTION ENGINE | Sep 03, 10 | Jan 03, 13 | MAHLE INTERNATIONAL GMBH |