F02B 2075/1804
Number of cylinders
Official title: {Number of cylinders}
F02B2075/1804 (Number of cylinders) appears on 2,239 US grants and 753 published applications in this corpus.
Search patents in F02B- Granted patents
- 2,239
- Published applications
- 753
- Assignees
- 405
- Inventors
- 2,968
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 21 | 0 |
| 1978 | 30 | 0 |
| 1979 | 23 | 0 |
| 1980 | 20 | 0 |
| 1981 | 22 | 0 |
| 1982 | 20 | 0 |
| 1983 | 30 | 0 |
| 1984 | 41 | 0 |
| 1985 | 48 | 0 |
| 1986 | 37 | 0 |
| 1987 | 63 | 0 |
| 1988 | 51 | 0 |
| 1989 | 60 | 0 |
| 1990 | 54 | 0 |
| 1991 | 82 | 0 |
| 1992 | 83 | 0 |
| 1993 | 64 | 0 |
| 1994 | 52 | 0 |
| 1995 | 59 | 0 |
| 1996 | 85 | 0 |
| 1997 | 74 | 0 |
| 1998 | 102 | 0 |
| 1999 | 105 | 0 |
| 2000 | 112 | 0 |
| 2001 | 108 | 48 |
| 2002 | 125 | 126 |
| 2003 | 128 | 102 |
| 2004 | 84 | 62 |
| 2005 | 69 | 38 |
| 2006 | 42 | 9 |
| 2007 | 15 | 9 |
| 2008 | 3 | 4 |
| 2009 | 4 | 6 |
| 2010 | 4 | 5 |
| 2011 | 5 | 9 |
| 2012 | 2 | 21 |
| 2013 | 5 | 10 |
| 2014 | 13 | 20 |
| 2015 | 19 | 19 |
| 2016 | 17 | 21 |
| 2017 | 20 | 43 |
| 2018 | 24 | 33 |
| 2019 | 38 | 40 |
| 2020 | 40 | 35 |
| 2021 | 36 | 22 |
| 2022 | 31 | 19 |
| 2023 | 19 | 16 |
| 2024 | 15 | 16 |
| 2025 | 16 | 12 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02B 2075/1816FourIndexing code691
- F02B 2075/1824SixIndexing code648
- F02B 2075/1808TwoIndexing code431
- F02B 2075/1812ThreeIndexing code265
- F02B 2075/1832EightIndexing code180
- F02B 2075/182FiveIndexing code51
- F02B 2075/184TenIndexing code43
- F02B 2075/1848TwelveIndexing code39
All 22 subgroupsShow fewer
- F02B 2075/1864SixteenIndexing code20
- F02B 2075/1856FourteenIndexing code9
- F02B 2075/1868TwentyIndexing code6
- F02B 2075/1828SevenIndexing code4
- F02B 2075/1836NineIndexing code3
- F02B 2075/1844ElevenIndexing code1
- F02B 2075/1852ThirteenIndexing code1
- F02B 2075/186FifteenIndexing code1
- F02B 2075/1872Twenty-twoIndexing code0
- F02B 2075/1876Twenty-fourIndexing code0
- F02B 2075/188ThirtyIndexing code0
- F02B 2075/1884Thirty-twoIndexing code0
- F02B 2075/1888Thirty-fourIndexing code0
- F02B 2075/1892Thirty-sixIndexing code0
Recent patents
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- System and method for injecting condensate in cylinder of a reciprocating engine21 Apr 2026US 12,607,151 B2Innio Jenbacher GmbH & Co OG
- Torsional vibration solutions for cylinder deactivation17 Feb 2026US 12,553,399 B2Eaton Intelligent Power Limited
- Engine and exhaust structure30 Dec 2025US 12,510,012 B1Kawasaki Motors, Ltd.
- Two stroke apposed pistons parallel cylinders internal combustion engine1 Oct 2026US 2026/0298132 A1
- Motorcycle Engine27 Aug 2026US 2026/0251091 A1Zhejiang Qianjiang Motorcycle Co., Ltd.
- Method for synchronizing an internal combustion engine on the basis of data from signals representative of air pressure in cylinders20 Aug 2026US 2026/0243208 A1Schaeffler Technologies AG & Co. KG
- All-Terrain Vehicle7 May 2026US 2026/0125132 A1Zhejiang CFMOTO Power Co., Ltd.
- All-Terrain Vehicle7 May 2026US 2026/0126024 A1Zhejiang CFMOTO Power Co., Ltd.
Most cited
By later US patents
- Internal combustion engine1,364US 4,054,108 AGeneral Motors Corporation · 1977
- Engine with cylinder deactivation168US 6,023,929 AFord Global Technologies, LLC · 2000
- Hybrid electric propulsion system164US 5,172,784 A1992
- Hydraulically-actuated electronically-controlled unit injector fuel system having variable control of actuating fluid pressure125US 5,191,867 ACaterpillar Inc. · 1993
- Thermally sprayed aluminum-bronze coatings on aluminum engine bores121US 5,080,056 AGeneral Motors Corporation · 1992