F04C 14/24
Control of, monitoring of, or safety arrangements for, machines, pumps or pumping
Official title: characterised by using valves controlling pressure or flow rate, e.g. discharge valves {or unloading valves}(F04C14/10 takes precedence)
F04C14/24 (Control of, monitoring of, or safety arrangements for, machines, pumps or pumping) appears on 493 US grants and 380 published applications in this corpus.
Search patents in F04C- Granted patents
- 493
- Published applications
- 380
- Assignees
- 261
- Inventors
- 950
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 9 | 0 |
| 1983 | 8 | 0 |
| 1984 | 11 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 0 |
| 2002 | 11 | 7 |
| 2003 | 6 | 19 |
| 2004 | 14 | 11 |
| 2005 | 9 | 11 |
| 2006 | 5 | 10 |
| 2007 | 3 | 7 |
| 2008 | 7 | 15 |
| 2009 | 3 | 16 |
| 2010 | 9 | 10 |
| 2011 | 7 | 5 |
| 2012 | 13 | 15 |
| 2013 | 7 | 22 |
| 2014 | 12 | 20 |
| 2015 | 16 | 30 |
| 2016 | 20 | 25 |
| 2017 | 20 | 31 |
| 2018 | 27 | 28 |
| 2019 | 25 | 22 |
| 2020 | 21 | 20 |
| 2021 | 16 | 15 |
| 2022 | 16 | 12 |
| 2023 | 18 | 7 |
| 2024 | 16 | 9 |
| 2025 | 6 | 8 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump and method for adjusting the delivery rate of a pump14 Jul 2026US 12,680,543 B2ITT Bornemann GmbH
- Fluid rotary machine with an encoder module23 Jun 2026US 12,662,985 B2Danfoss Power Solutions ApS
- Pump for additive manufacturing16 Jun 2026US 12,654,396 B2Sciperio, Inc
- Control device for hydraulic control valve28 Apr 2026US 12,612,912 B2Hitachi Astemo, Ltd.
- Variable displacement pump24 Feb 2026US 12,560,168 B2Hitachi Astemo, Ltd.
- Lubrication system for an internal combustion engine25 Jun 2026US 2026/0176992 A1DAF Trucks N. V.
- Mutant gene detection method18 Jun 2026US 2026/0168008 A1Hitachi High-Tech Corporation
- Electric pump system and method with hollow shaft and temperature sensor18 Jun 2026US 2026/0168491 A1Tesla, Inc.
- Rotating screw machine with discharge plate30 Apr 2026US 2026/0117769 A1City St George's, University of London
- Screw compressor and refrigeration apparatus15 Jan 2026US 2026/0016006 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Overheat protection for fluid pump89US 6,837,688 B2Standex International Corporation · 2005
- Oil pump pressure control device85US 8,038,416 B2Yamada Manufacturing Co., Ltd. · 2011
- Pump with conveying chamber formed in outer rotor surface55US 7,674,100 B2PDD Innovations Ltd. · 2010
- Vehicle transmission control system54US 4,262,335 AS.R.M. Hydromekanik · 1981
- Hot melt adhesive foam pump system51US 4,200,207 ANordson Corporation · 1980