| 2023/0399,994 | SYSTEM AND METHOD FOR DEBURRED PORT HOLES IN A TWO-STROKE ENGINE | Oct 08, 21 | Dec 14, 23 | Not available |
| 2023/0036,494 | TWO-CYCLE ENGINE | Jul 07, 22 | Feb 02, 23 | Yamabiko Corporation |
| 2022/0381,164 | INTERNAL COMBUSTION ENGINE VALVE SYSTEM AND METHOD | Aug 01, 22 | Dec 01, 22 | LSE R&D ENGINEERING LIMITED |
| 2021/0003,043 | APPARATUS AND METHOD FOR VALVE TIMING IN AN INTERNAL COMBUSTION ENGINE | Sep 22, 20 | Jan 07, 21 | Not available |
| 2020/0095,953 | STRATIFIED SCAVENGING ENGINE AND PORTABLE WORK MACHINE | Aug 28, 19 | Mar 26, 20 | Yamabiko Corporation |
| 2020/0056,480 | ENGINE WITH WORK STROKE AND GAS EXCHANGE THROUGH PISTON ROD | Sep 27, 19 | Feb 20, 20 | Aquarius Engines (A.M.) Ltd. |
| 2019/0218,965 | FLUID DELIVERY PORT OF AN INTEGRAL CYLINDER HEAD | Jan 15, 18 | Jul 18, 19 | Ford Global Technologies LLC |
| 2019/0218,994 | Cylinder Structure of Internal Combustion Engine | Jan 17, 18 | Jul 18, 19 | Not available |
| 2019/0178,199 | PORT BELT ARRANGEMENT | Aug 02, 17 | Jun 13, 19 | Not available |
| 2018/0045,136 | PORT EDGE SHAPE WITH CONTINUOUS CURVATURE FOR IMPROVED RING-PORTINTERACTION AND FLOW AREA | Aug 09, 16 | Feb 15, 18 | ACHATES POWER, INC. |
| 2017/0045,014 | MULTI-PIECE CYLINDER | Aug 15, 16 | Feb 16, 17 | COBRA AERO LLC |
| 2016/0252,012 | INTERNAL COMBUSTION ENGINES | Oct 16, 14 | Sep 01, 16 | COX POWERTRAIN LTD. |
| 2016/0252,044 | Engine Block Construction For Opposed Piston Engine | Feb 23, 16 | Sep 01, 16 | AVL POWERTRAIN ENGINEERING, INC. |
| 2015/0345,372 | ASYMMETRIC TRANSFER AND INTAKE IN TWO-STROKES | May 19, 15 | Dec 03, 15 | Not available |
| 2015/0167,536 | COMBUSTION CHAMBER STRUCTURE FOR ENGINE | Aug 12, 13 | Jun 18, 15 | MAZDA MOTOR CORPORATION |
| 2015/0083,076 | TWO-STROKE SPARK-IGNITION ENGINE | Dec 22, 11 | Mar 26, 15 | Not available |
| 2015/0034,060 | EXHAUST VALVE ASSEMBLY FOR A TWO-STROKE ENGINE | Jul 24, 14 | Feb 05, 15 | BRP-POWERTRAIN GMBH & CO. KG. |
| 2014/0331,981 | AIR INTAKE PORTING FOR A TWO STROKE ENGINE | May 22, 14 | Nov 13, 14 | GE OIL & GAS COMPRESSION SYSTEMS, LLC |
| 2014/0069,358 | CYLINDER LINER HAVING INTAKE PORTS FOR IMPROVED SCAVENGING | Sep 13, 12 | Mar 13, 14 | ELECTRO-MOTIVE DIESEL, INC. |
| 2011/0232,599 | AIR INTAKE PORTING FOR A TWO STROKE ENGINE | Jun 09, 11 | Sep 29, 11 | GE OIL & GAS COMPRESSION SYSTEMS, LLC |