F04C 14/06
Control of, monitoring of, or safety arrangements for, machines, pumps or pumping
Official title: specially adapted for stopping, starting, idling or no-load operation
F04C14/06 (Control of, monitoring of, or safety arrangements for, machines, pumps or pumping) appears on 180 US grants and 148 published applications in this corpus.
Search patents in F04C- Granted patents
- 180
- Published applications
- 148
- Assignees
- 122
- Inventors
- 342
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 6 |
| 2003 | 4 | 7 |
| 2004 | 2 | 3 |
| 2005 | 7 | 5 |
| 2006 | 4 | 4 |
| 2007 | 3 | 5 |
| 2008 | 3 | 5 |
| 2009 | 0 | 10 |
| 2010 | 1 | 7 |
| 2011 | 2 | 8 |
| 2012 | 7 | 3 |
| 2013 | 9 | 6 |
| 2014 | 4 | 7 |
| 2015 | 7 | 12 |
| 2016 | 4 | 8 |
| 2017 | 10 | 6 |
| 2018 | 5 | 9 |
| 2019 | 8 | 6 |
| 2020 | 6 | 11 |
| 2021 | 3 | 2 |
| 2022 | 8 | 8 |
| 2023 | 10 | 7 |
| 2024 | 3 | 1 |
| 2025 | 5 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Progressive cavity pump system having reverse mode8 Sep 2026US 12,729,682 B2Schlumberger Technology Corporation
- Progressive cavity pump cartridge with infrared temperature sensors on fluid inlet and outlet24 Jun 2025US 12,338,816 B2Johnson & Johnson Surgical Vision, Inc.
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump24 Jun 2025US 12,341,398 B2Toshiba International Corporation
- Fault rectification method for a progressive cavity pump of a conveyor device for conveying viscous building materials25 Mar 2025US 12,258,961 B2J. Wagner GmbH
- Eccentric screw pump with a pressure chamber between an elastomeric stator portion and a casing4 Feb 2025US 12,215,689 B2Grundfos Holding A/S
- Gerotor Pump And Motor/Pump Unit20 Feb 2025US 2025/0059973 A1Thomas Magnete GmbH
- Spring retainer for gear pump bearing plate12 Sep 2024US 2024/0301878 A1Hamilton Sundstrand Corporation
- Voltage optimization technique for a permanent magnet motor used in an electric submersible pump9 Nov 2023US 2023/0361645 A1Toshiba International Corporation
- Fault rectification method for a progressive cavity pump of a conveyor device for conveying viscous building materials2 Nov 2023US 2023/0349378 A1J. Wagner GmbH
- Spring retainer for gear pump bearing plate8 Jun 2023US 2023/0175503 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Safety device for avoiding entrapment at a water reservoir drain94US 5,690,476 A1997
- 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
- Method and apparatus for accurately dispensing liquids and solids72US 5,857,589 AFluid Research Corporation · 1999
- Controlled suction unloading in a scroll compressor64US 4,431,388 AThe Trane Company · 1984