F04D 15/0281
Responsive to a condition not otherwise provided for
Official title: {responsive to a condition not otherwise provided for}
F04D15/0281 (Responsive to a condition not otherwise provided for) appears on 54 US grants and 81 published applications in this corpus.
Search patents in F04D- Granted patents
- 54
- Published applications
- 81
- Assignees
- 45
- Inventors
- 133
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 1 | 18 |
| 2018 | 2 | 12 |
| 2019 | 10 | 9 |
| 2020 | 3 | 2 |
| 2021 | 9 | 7 |
| 2022 | 4 | 5 |
| 2023 | 4 | 5 |
| 2024 | 4 | 4 |
| 2025 | 5 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems, devices, and/or methods for managing water24 Feb 2026US 12,560,170 B2
- Computer-controlled power takeoff driven motorized pump system27 Jan 2026US 12,535,074 B2Lovis, LLC
- Determining a condition of an electric submersible pump using orthogonal accelerometers16 Dec 2025US 12,498,283 B1Halliburton Energy Services.Inc.
- Variable frequency drive (VFD) controllers with engine failover and systems including the same9 Sep 2025US 12,410,801 B2Cattron North America, Inc.
- Systems, methods, and machine readable programs for controlling a water utility system responsive to observed acoustic emission15 Apr 2025US 12,276,955 B2Grundfos Holding A/S
- Computer-controlled power takeoff driven motorized pump system4 Jun 2026US 2026/0153090 A1Lovis, LLC
- Water pump control device12 Feb 2026US 2026/0043407 A1Delta Electronics, Inc.
- Systems, devices, and/or methods for managing water8 Jan 2026US 2026/0009386 A1
- Variable Frequency Drive (VFD) Controllers With Engine Failover And Systems Including The Same18 Dec 2025US 2025/0385511 A1Cattron North America, Inc.
- Well management system10 Apr 2025US 2025/0116276 A1Amtrol Licensing Inc.
Most cited
By later US patents
- Automatic pump protection system333US 4,913,625 AWestinghouse Electric Corp. · 1990
- Method and apparatus for controlling operation of a submersible pump109US 6,254,353 B1General Electric Company · 2001
- Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment19US 10,219,975 B2Hayward Industries, Inc. · 2019
- Home flood prevention appliance system14US 11,187,223 B2Logical Concepts, Inc. · 2021
- Fan array control system14US 8,849,463 B2Huntair, Inc. · 2014