F04C 14/02
Control of, monitoring of, or safety arrangements for, machines, pumps or pumping
Official title: specially adapted for several machines or pumps connected in series or in parallel
F04C14/02 (Control of, monitoring of, or safety arrangements for, machines, pumps or pumping) appears on 131 US grants and 102 published applications in this corpus.
Search patents in F04C- Granted patents
- 131
- Published applications
- 102
- Assignees
- 99
- Inventors
- 266
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 8 |
| 2009 | 1 | 4 |
| 2010 | 2 | 6 |
| 2011 | 2 | 5 |
| 2012 | 4 | 3 |
| 2013 | 4 | 5 |
| 2014 | 4 | 9 |
| 2015 | 4 | 9 |
| 2016 | 6 | 4 |
| 2017 | 7 | 8 |
| 2018 | 6 | 9 |
| 2019 | 3 | 1 |
| 2020 | 9 | 4 |
| 2021 | 3 | 5 |
| 2022 | 1 | 5 |
| 2023 | 7 | 5 |
| 2024 | 4 | 3 |
| 2025 | 5 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Gear pump parallel load path24 Mar 2026US 12,584,482 B1Pratt & Whitney Canada Corp.
- Linear actuator assembly and system23 Sep 2025US 12,421,985 B2Project Phoenix, LLC
- Method to operate a vacuum system19 Aug 2025US 12,392,337 B2Atlas Copco Airpower N.V.
- Dual gerotor apparatus, a powertrain assembley and an electrified vehicle27 May 2025US 12,313,067 B2Valeo Powertrain (Nanjing) Co., Ltd.
- Gear pump parallel load path30 Jul 2026US 2026/0218702 A1Pratt & Whitney Canada Corp.
- Electronics construction kit3 Oct 2024US 2024/0333083 A1RAPA Automotive GmbH & Co. KG
- Pump motor predictive maintenance11 Jan 2024US 2024/0011477 A1Nordson Corporation
- A dual gerotor apparatus, a powertrain assembley and an electrified vehicle11 Jan 2024US 2024/0011483 A1Valeo Powertrain (Nanjing) Co., Ltd.
- Stacked gerotor pump pressure pulsation reduction27 Jul 2023US 2023/0235737 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Vehicle transmission control system54US 4,262,335 AS.R.M. Hydromekanik · 1981
- Energy efficient fluid pump45US 5,918,573 A1999
- Efficiency fluid pumping system including sequential unloading of a plurality of pumps by a single pressure responsive control valve38US 4,245,964 AUnited Technologies Corporation · 1981
- Rotary vane pump having multi-independent outputs due to stator surfaces of different contour35US 4,183,723 ASundstrand Corporation · 1980
- Variable speed centrifugal pump34US 4,332,527 ALear Siegler, Inc. · 1982