F05D 2270/309
Rate of change of parameters
F05D2270/309 (Rate of change of parameters) appears on 86 US grants and 111 published applications in this corpus.
Search patents in F05D- Granted patents
- 86
- Published applications
- 111
- Assignees
- 41
- Inventors
- 243
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 3 |
| 2008 | 1 | 3 |
| 2009 | 3 | 2 |
| 2010 | 2 | 4 |
| 2011 | 3 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 10 |
| 2016 | 2 | 5 |
| 2017 | 4 | 3 |
| 2018 | 8 | 12 |
| 2019 | 10 | 9 |
| 2020 | 4 | 10 |
| 2021 | 9 | 3 |
| 2022 | 7 | 9 |
| 2023 | 9 | 11 |
| 2024 | 10 | 2 |
| 2025 | 4 | 9 |
| 2026 | 3 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Aircraft engine with recuperator and bypass12 May 2026US 12,624,663 B2Pratt & Whitney Canada Corp.
- Engine system and method of operating the same14 Apr 2026US 12,601,303 B2ROLLS-ROYCE plc
- Systems and methods for identifying insufficient starter acceleration for an aircraft engine27 Jan 2026US 12,535,016 B2Pratt & Whitney Canada Corp.
- Engine system and method of operating the same6 May 2025US 12,292,008 B2ROLLS-ROYCE plc
- Method for monitoring a starting sequence of a turbomachine and monitoring system implementing said method8 Apr 2025US 12,270,346 B2Safran Aircraft Engines
- Plant control device and calculation amount changeability determination method30 Jul 2026US 2026/0221771 A1Hitachi, Ltd.
- Aircraft engine with recuperator and bypass12 Mar 2026US 2026/0071579 A1Pratt & Whitney Canada Corp.
- Method and device for predicting blood pump state, and apparatus and medium11 Sep 2025US 2025/0281685 A1
- Hybrid-electric gas turbine engine and method of operating21 Aug 2025US 2025/0264059 A1General Electric Company
- Systems and methods for cooling fan control22 May 2025US 2025/0165049 A1Vertiv Corporation
Most cited
By later US patents
- Decision making process and manual for diagnostic trend analysis53US 6,591,182 B1General Electric Company · 2003
- Method and system for balancing bleed flows from gas turbine engines28US 7,536,865 B2Honeywell International Inc. · 2009
- Power turbine speed control using electrical load following24US 7,615,881 B2Hamilton Sundstrand Corporation · 2009
- Diagnostic method and system for turbine engines22US 6,687,596 B2General Electric Company · 2004
- Electrical power generator for a gas turbine engine19US 9,729,096 B2ROLLS-ROYCE plc · 2017