F02F
Cylinders, pistons or casings, for combustion engines
Official title: Cylinders, pistons or casings, for combustion engines; arrangements of sealings in combustion engines
F02F (Cylinders, pistons or casings, for combustion engines) appears on 9,016 US grants and 5,696 published applications in this corpus.
Search patents in F02F- Granted patents
- 9,016
- Published applications
- 5,696
- Assignees
- 1,640
- Inventors
- 13,434
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 52 | 0 |
| 1977 | 62 | 0 |
| 1978 | 85 | 0 |
| 1979 | 50 | 0 |
| 1980 | 79 | 0 |
| 1981 | 90 | 0 |
| 1982 | 98 | 0 |
| 1983 | 97 | 0 |
| 1984 | 161 | 0 |
| 1985 | 204 | 0 |
| 1986 | 159 | 0 |
| 1987 | 219 | 0 |
| 1988 | 191 | 0 |
| 1989 | 210 | 0 |
| 1990 | 217 | 0 |
| 1991 | 226 | 0 |
| 1992 | 208 | 0 |
| 1993 | 211 | 0 |
| 1994 | 184 | 0 |
| 1995 | 183 | 0 |
| 1996 | 172 | 0 |
| 1997 | 175 | 0 |
| 1998 | 199 | 0 |
| 1999 | 190 | 0 |
| 2000 | 218 | 0 |
| 2001 | 256 | 81 |
| 2002 | 226 | 236 |
| 2003 | 253 | 191 |
| 2004 | 185 | 214 |
| 2005 | 182 | 188 |
| 2006 | 155 | 154 |
| 2007 | 124 | 182 |
| 2008 | 114 | 162 |
| 2009 | 92 | 178 |
| 2010 | 112 | 198 |
| 2011 | 111 | 191 |
| 2012 | 118 | 204 |
| 2013 | 146 | 271 |
| 2014 | 212 | 253 |
| 2015 | 203 | 368 |
| 2016 | 203 | 388 |
| 2017 | 287 | 413 |
| 2018 | 345 | 375 |
| 2019 | 395 | 328 |
| 2020 | 341 | 334 |
| 2021 | 336 | 235 |
| 2022 | 230 | 169 |
| 2023 | 166 | 131 |
| 2024 | 135 | 103 |
| 2025 | 108 | 70 |
| 2026 | 41 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
Recent patents
- Power assembly crab plate for engine29 Sep 2026US 12,747,712 B2Progress Rail Locomotive Inc.
- Multi-part piston construction for an opposed-piston engine29 Sep 2026US 12,747,713 B2General Atomics Aeronautical Systems, Inc.
- Cylinder block and internal combustion engine system22 Sep 2026US 12,742,432 B2Cummins Inc.
- Piston alignment tool15 Sep 2026US 12,734,659 B2Federal-Mogul Motorparts LLC
- Piston system for a compression engine8 Sep 2026US 12,729,642 B2
- Piston and internal combustion engine8 Oct 2026US 2026/0309104 A1Mahle International GmbH
- System and method having an anti-polishing ring for a piston1 Oct 2026US 2026/0298172 A1Innio Jenbacher GmbH & Co OG
- Cylinder block of internal combustion engine1 Oct 2026US 2026/0298173 A1Honda Motor Co., Ltd.
- Piston cooling arrangement1 Oct 2026US 2026/0298174 A1Cummins Inc.
- Boxer Engine and Vehicle with a Boxer Engine1 Oct 2026US 2026/0298175 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
Most cited
By later US patents
- Pressure side integrated air filter and filtering networks for engines222US 5,472,463 ACummins Engine Company, Inc. · 1995
- Robot vision using targets184US 5,506,682 ASensor Adaptive Machines, Inc. · 1996
- Method and apparatus for operating with a hopping control channel in a communication system165US 5,506,863 AMotorola, Inc. · 1996
- External combustion slidable vane motor with air cushions149US 4,672,813 A1987
- Composite synthetic materials149US 4,960,643 A1990