F04D 15/0254
The condition being speed or load
Official title: {the condition being speed or load}
F04D15/0254 (The condition being speed or load) appears on 71 US grants and 81 published applications in this corpus.
Search patents in F04D- Granted patents
- 71
- Published applications
- 81
- Assignees
- 49
- Inventors
- 119
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 4 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 2 | 1 |
| 2014 | 1 | 3 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 4 | 7 |
| 2018 | 2 | 5 |
| 2019 | 7 | 3 |
| 2020 | 7 | 8 |
| 2021 | 5 | 5 |
| 2022 | 4 | 1 |
| 2023 | 5 | 7 |
| 2024 | 10 | 12 |
| 2025 | 9 | 8 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid delivery system health monitoring systems and methods7 Jul 2026US 12,674,459 B2Oshkosh Corporation
- Determining and utilizing a desired frequency for a mechanical shaker for a sump pump system16 Jun 2026US 12,655,849 B2State Farm Mutual Automobile Insurance Company
- Method for operating a pump6 Jan 2026US 12,516,664 B2Robert Bosch GmbH
- Motor control device26 Aug 2025US 12,401,311 B2Denso Corporation
- Adaptive learning system for improving sump pump control15 Jul 2025US 12,359,669 B2State Farm Mutual Automobile Insurance Company
- Fluid delivery system health monitoring systems and methods1 Oct 2026US 2026/0298249 A1Oshkosh Corporation
- Control device and pump apparatus30 Jul 2026US 2026/0218711 A1
- Method for Monitoring the Operation of a Pump, Preferably a Centrifugal Pump30 Apr 2026US 2026/0117777 A1KSB SE & Co. KGaA
- Motor idling detection device, motor control device, method for detecting motor idling and tangible computer readable storage medium16 Oct 2025US 2025/0320874 A1Denso Corporation
- Determining and utilizing a desired frequency for a mechanical shaker for a sump pump system19 Jun 2025US 2025/0198415 A1State Farm Mutual Automobile Insurance Company
Most cited
By later US patents
- Pump device having a detection device145US 9,358,330 B2Ecp Entwicklungsgesellschaft Mbh · 2016
- Bilge pump104US 5,833,437 AShurflo Pump Manufacturing Co. · 1998
- Torque controlled pump protection with mechanical loss compensation67US 7,080,508 B2ITT Manufacturing Enterprises, Inc. · 2006
- Motor controller for electrical submersible pumps64US 5,015,151 AShell Oil Company · 1991
- Anti-entrapment and anti-dead head function50US 8,602,745 B2Danfoss Low Power Drives · 2013