F02B 75/16
Engines characterised by number of cylinders
Official title: Engines characterised by number of cylinders, e.g. single-cylinder engines (F02B75/26 takes precedence)
F02B75/16 (Engines characterised by number of cylinders) appears on 4,139 US grants and 1,767 published applications in this corpus.
Search patents in F02B- Granted patents
- 4,139
- Published applications
- 1,767
- Assignees
- 763
- Inventors
- 5,570
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 36 | 0 |
| 1977 | 36 | 0 |
| 1978 | 56 | 0 |
| 1979 | 41 | 0 |
| 1980 | 37 | 0 |
| 1981 | 36 | 0 |
| 1982 | 30 | 0 |
| 1983 | 47 | 0 |
| 1984 | 68 | 0 |
| 1985 | 86 | 0 |
| 1986 | 70 | 0 |
| 1987 | 102 | 0 |
| 1988 | 92 | 0 |
| 1989 | 124 | 0 |
| 1990 | 115 | 0 |
| 1991 | 131 | 0 |
| 1992 | 118 | 0 |
| 1993 | 110 | 0 |
| 1994 | 81 | 0 |
| 1995 | 91 | 0 |
| 1996 | 136 | 0 |
| 1997 | 121 | 0 |
| 1998 | 150 | 0 |
| 1999 | 150 | 0 |
| 2000 | 176 | 0 |
| 2001 | 176 | 74 |
| 2002 | 197 | 207 |
| 2003 | 204 | 183 |
| 2004 | 156 | 138 |
| 2005 | 133 | 76 |
| 2006 | 85 | 33 |
| 2007 | 38 | 45 |
| 2008 | 24 | 40 |
| 2009 | 24 | 52 |
| 2010 | 31 | 30 |
| 2011 | 20 | 33 |
| 2012 | 33 | 65 |
| 2013 | 30 | 57 |
| 2014 | 63 | 54 |
| 2015 | 48 | 61 |
| 2016 | 57 | 67 |
| 2017 | 59 | 102 |
| 2018 | 82 | 76 |
| 2019 | 93 | 80 |
| 2020 | 85 | 69 |
| 2021 | 65 | 45 |
| 2022 | 57 | 48 |
| 2023 | 40 | 33 |
| 2024 | 41 | 52 |
| 2025 | 38 | 19 |
| 2026 | 20 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cylinder block and internal combustion engine system22 Sep 2026US 12,742,432 B2Cummins Inc.
- Motorcycle engine15 Sep 2026US 12,736,006 B2Zheijing Qianjiang Motorcycle Co., Ltd.
- Waissi Engine drivetrain bearing ring interface to piston base bearing pad28 Jul 2026US 12,692,813 B2
- Engine30 Jun 2026US 12,668,324 B2Suzuki Motor Corporation
- Radial cam engine23 Jun 2026US 12,662,941 B2
- Two stroke apposed pistons parallel cylinders internal combustion engine1 Oct 2026US 2026/0298132 A1
- Boxer Engine and Vehicle with a Boxer Engine1 Oct 2026US 2026/0298175 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Reciprocating mechanical devices and methods of operation1 Oct 2026US 2026/0298321 A1
- Power generation unit and power plant10 Sep 2026US 2026/0266214 A1WäRtsilä Finland Oy
- Motorcycle Engine27 Aug 2026US 2026/0251091 A1Zhejiang Qianjiang Motorcycle Co., Ltd.
Most cited
By later US patents
- Internal combustion engine1,364US 4,054,108 AGeneral Motors Corporation · 1977
- Opposed piston internal combustion engine with inviscid layer sealing470US 9,909,492 B2Prime Group Alliance, LLC · 2018
- Engine with cylinder deactivation168US 6,023,929 AFord Global Technologies, LLC · 2000
- Hybrid electric propulsion system164US 5,172,784 A1992
- Controller for permanent magnet generator155US 5,625,276 AColeman Powermate, Inc. · 1997