F05D 2270/091
In particular sudden load loss
Official title: in particular sudden load loss
F05D2270/091 (In particular sudden load loss) appears on 86 US grants and 89 published applications in this corpus.
Search patents in F05D- Granted patents
- 86
- Published applications
- 89
- Assignees
- 51
- Inventors
- 252
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 2 | 2 |
| 2006 | 4 | 4 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 4 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 5 |
| 2013 | 2 | 8 |
| 2014 | 2 | 7 |
| 2015 | 5 | 4 |
| 2016 | 6 | 6 |
| 2017 | 3 | 8 |
| 2018 | 5 | 5 |
| 2019 | 9 | 5 |
| 2020 | 3 | 3 |
| 2021 | 2 | 4 |
| 2022 | 5 | 3 |
| 2023 | 7 | 5 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Variable frequency drive (VFD) controllers with engine failover and systems including the same9 Sep 2025US 12,410,801 B2Cattron North America, Inc.
- Combination valve consisting of quick-acting valve and control valve for a steam circuit and SIL 3 certified safety circuit4 Mar 2025US 12,241,554 B2Turventil GmbH & Co. KG
- Method and system for detecting a shaft shear event10 Dec 2024US 12,163,859 B2Pratt & Whitney Canada Corp.
- Self contained hydraulic lock apparatus18 Jun 2024US 12,012,860 B2Mesa Associates, Inc.
- Aircraft engine with lubricant system having windmilling configuration8 Oct 2026US 2026/0309051 A1Pratt & Whitney Canada Corp.
- Turbo-expander overspeed protection20 Aug 2026US 2026/0243203 A1NET Power LLC
- Aircraft turbine engine having means for detecting the axial displacement of a fan16 Jul 2026US 2026/0201813 A1Safran Aircraft Engines
- Method and system for detecting a shaft shear event20 Feb 2025US 2025/0060281 A1Pratt & Whitney Canada Corp.
- Turbine overspeed protection7 Nov 2024US 2024/0369023 A1ROLLS-ROYCE plc
Most cited
By later US patents
- Gas turbine engine/load compressor power plants64US 4,627,234 ASundstrand Corporation · 1986
- Systems and methods involving multiple torque paths for gas turbine engines63US 8,621,871 B2United Technologies Corporation · 2014
- Valve control logic for gas turbine recuperator51US 6,463,730 B1Honeywell Power Systems Inc. · 2002
- Method of regulating the rotational speed of a gas turbine during load disconnection38US 5,680,753 AAsea Brown Boveri AG · 1997
- Method for controlling the rotational speed of a turbine during load shedding36US 6,070,405 ASiemens Aktiengesellschaft · 2000