F04C 2270/00
Control
Official title: Control; Monitoring or safety arrangements
F04C2270/00 (Control) appears on 2,943 US grants and 3,572 published applications in this corpus.
Search patents in F04C- Granted patents
- 2,943
- Published applications
- 3,572
- Assignees
- 1,244
- Inventors
- 5,897
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 24 | 0 |
| 1997 | 13 | 0 |
| 1998 | 17 | 0 |
| 1999 | 9 | 0 |
| 2000 | 29 | 0 |
| 2001 | 23 | 11 |
| 2002 | 26 | 25 |
| 2003 | 25 | 32 |
| 2004 | 16 | 37 |
| 2005 | 19 | 64 |
| 2006 | 23 | 48 |
| 2007 | 27 | 33 |
| 2008 | 23 | 49 |
| 2009 | 29 | 50 |
| 2010 | 28 | 70 |
| 2011 | 34 | 65 |
| 2012 | 48 | 165 |
| 2013 | 83 | 381 |
| 2014 | 128 | 523 |
| 2015 | 217 | 420 |
| 2016 | 297 | 205 |
| 2017 | 269 | 189 |
| 2018 | 278 | 219 |
| 2019 | 237 | 164 |
| 2020 | 193 | 170 |
| 2021 | 155 | 155 |
| 2022 | 138 | 112 |
| 2023 | 141 | 132 |
| 2024 | 153 | 106 |
| 2025 | 111 | 89 |
| 2026 | 55 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04C 2270/04ForceIndexing code1,434
- F04C 2270/19TemperatureIndexing code278
- F04C 2270/18PressureIndexing code240
- F04C 2270/70Safety, emergency conditions or requirementsIndexing code207
- F04C 2270/80DiagnosticsIndexing code188
- F04C 2270/86DetectionIndexing code177
- F04C 2270/12VibrationIndexing code175
- F04C 2270/05SpeedIndexing code160
All 40 subgroupsShow fewer
- F04C 2270/13NoiseIndexing code98
- F04C 2270/20FlowIndexing code78
- F04C 2270/03TorqueIndexing code68
- F04C 2270/16WearIndexing code68
- F04C 2270/07Electric currentIndexing code66
- F04C 2270/17ToleranceIndexing code64
- F04C 2270/58Valve parametersIndexing code60
- F04C 2270/24Level of liquidIndexing code57
- F04C 2270/01LoadIndexing code52
- F04C 2270/56Number of pump/machine units in operationIndexing code46
- F04C 2270/02PowerIndexing code43
- F04C 2270/21Pressure differenceIndexing code43
- F04C 2270/14PulsationsIndexing code39
- F04C 2270/90Remote controlIndexing code38
- F04C 2270/44Conditions at the outlet of a pump or machineIndexing code37
- F04C 2270/78WarningsIndexing code34
- F04C 2270/60Prime mover parametersIndexing code32
- F04C 2270/09Electric current frequencyIndexing code22
- F04C 2270/10VoltageIndexing code20
- F04C 2270/42Conditions at the inlet of a pump or machineIndexing code17
- F04C 2270/22Temperature differenceIndexing code15
- F04C 2270/48Conditions of a reservoir linked to a pump or machineIndexing code12
- F04C 2270/15ResonanceIndexing code11
- F04C 2270/06AccelerationIndexing code9
- F04C 2270/40Conditions across a pump or machineIndexing code9
- F04C 2270/46Conditions in the working chamberIndexing code8
- F04C 2270/11Magnetic fluxIndexing code7
- F04C 2270/08Amplitude of electric currentIndexing code4
- F04C 2270/23Working cycle timing controlIndexing code3
- F04C 2270/50Conditions before a throttleIndexing code2
- F04C 2270/52Conditions after a throttleIndexing code2
- F04C 2270/54Conditions in a control cylinder/piston unitIndexing code0
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Most cited
By later US patents
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