F02P 5/152
Dependent on pinking
Official title: dependent on pinking (detecting or indicating knocks in internal-combustion engines G01L23/22)
F02P5/152 (Dependent on pinking) appears on 1,131 US grants and 705 published applications in this corpus.
Search patents in F02P- Granted patents
- 1,131
- Published applications
- 705
- Assignees
- 209
- Inventors
- 1,765
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 22 | 0 |
| 1982 | 26 | 0 |
| 1983 | 29 | 0 |
| 1984 | 38 | 0 |
| 1985 | 27 | 0 |
| 1986 | 32 | 0 |
| 1987 | 29 | 0 |
| 1988 | 19 | 0 |
| 1989 | 34 | 0 |
| 1990 | 22 | 0 |
| 1991 | 35 | 0 |
| 1992 | 31 | 0 |
| 1993 | 20 | 0 |
| 1994 | 10 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 20 | 4 |
| 2002 | 9 | 11 |
| 2003 | 13 | 17 |
| 2004 | 24 | 40 |
| 2005 | 29 | 20 |
| 2006 | 28 | 17 |
| 2007 | 29 | 33 |
| 2008 | 20 | 28 |
| 2009 | 16 | 31 |
| 2010 | 28 | 30 |
| 2011 | 19 | 35 |
| 2012 | 26 | 37 |
| 2013 | 28 | 21 |
| 2014 | 30 | 30 |
| 2015 | 24 | 46 |
| 2016 | 41 | 51 |
| 2017 | 38 | 45 |
| 2018 | 57 | 50 |
| 2019 | 53 | 45 |
| 2020 | 39 | 29 |
| 2021 | 50 | 25 |
| 2022 | 27 | 24 |
| 2023 | 15 | 11 |
| 2024 | 13 | 10 |
| 2025 | 6 | 9 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02P 5/1527With means allowing burning of two or more fuels168
- F02P 5/1521With particular means during a transient phase151
- F02P 5/1522With particular means concerning an individual cylinder129
- F02P 5/1523With particular laws of return to advance114
- F02P 5/1526With means for taking into account incorrect functioning of the pinking sensor72
- F02P 5/1528For turbocompressed engine65
- F02P 5/1525With means for compensating the variation of the characteristics of the pinking37
Recent patents
- Control apparatus for internal combustion engine1 Sep 2026US 12,723,564 B2Honda Motor Co., Ltd.
- Knocking control method for internal combustion engine and knocking control device7 Jul 2026US 12,674,435 B2Nissan Motor Co., Ltd.
- Systems and methods for adaptively managing engine knocking23 Jun 2026US 12,662,984 B2Caterpillar Inc.
- Method for operating an internal combustion engine28 Apr 2026US 12,612,879 B2Innio Jenbacher GmbH & Co OG
- Method and control unit for controlling a turbocharged hydrogen engine2 Dec 2025US 12,486,821 B2Robert Bosch GmbH
- Detecting knock using an arima model6 Aug 2026US 2026/0226878 A1Robert Bosch GmbH
- A system for mitigating knocking in an engine and a method thereof23 Jul 2026US 2026/0210307 A1Mahindra & Mahindra Limited
- Systems and methods for adaptively managing engine knocking5 Mar 2026US 2026/0063099 A1Caterpillar Inc.
- Method for operating an internal combustion engine5 Feb 2026US 2026/0036096 A1Innio Jenbacher GmbH & Co OG
- Combustion control for preventing knock and pre-ignition during transients in spark ignition internal combustion engines5 Feb 2026US 2026/0036108 A1Cummins Inc.
Most cited
By later US patents
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Ignition timing control apparatus for an internal combustion engine169US 4,913,116 AHitachi Automotive Engineering Co., Ltd. · 1990
- Differential torque operation for internal combustion engine167US 7,503,312 B2Ford Global Technologies, LLC · 2009
- Internal combustion engine137US 6,990,956 B2Toyota Jidosha Kabushiki Kaisha · 2006
- Knock control method and apparatus for an internal-combustion engine102US 4,480,616 AToyota Jidosha Kabushiki Kaisha · 1984