F01D 21/14
Responsive to other specific conditions
Official title: responsive to other specific conditions
F01D21/14 (Responsive to other specific conditions) appears on 367 US grants and 473 published applications in this corpus.
Search patents in F01D- Granted patents
- 367
- Published applications
- 473
- Assignees
- 122
- Inventors
- 909
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 4 |
| 2004 | 3 | 2 |
| 2005 | 3 | 4 |
| 2006 | 0 | 6 |
| 2007 | 3 | 4 |
| 2008 | 8 | 4 |
| 2009 | 2 | 6 |
| 2010 | 3 | 14 |
| 2011 | 4 | 9 |
| 2012 | 7 | 5 |
| 2013 | 6 | 7 |
| 2014 | 2 | 12 |
| 2015 | 8 | 21 |
| 2016 | 9 | 23 |
| 2017 | 19 | 23 |
| 2018 | 18 | 56 |
| 2019 | 24 | 88 |
| 2020 | 32 | 65 |
| 2021 | 56 | 20 |
| 2022 | 45 | 29 |
| 2023 | 37 | 17 |
| 2024 | 24 | 22 |
| 2025 | 29 | 18 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Propulsion system having fluidly separate lubrication systems for propulsors and turbo-engine11 Aug 2026US 12,704,096 B2General Electric Company
- Aircraft engine with lubricant system having windmilling configuration4 Aug 2026US 12,698,726 B1Pratt & Whitney Canada Corp.
- Systems and methods for improved transient response of turbine generators30 Jun 2026US 12,669,067 B2GE Vernova Infrastructure Technology LLC
- Methods and systems for detection in an industrial internet of things data collection environment with noise pattern recognition for boiler and pipeline systems24 Mar 2026US 12,585,255 B2Strong Force IOT Portfolio 2016, LLC
- Wireless telemetry module system for an aircraft engine17 Feb 2026US 12,553,361 B2Pratt & Whitney Canada Corp.
- Sign detection device, sign detection method, and sign detection program1 Oct 2026US 2026/0298106 A1Mitsubishi Heavy Industries, Ltd.
- Active tip clearance control system for aircraft engine27 Aug 2026US 2026/0251072 A1Pratt & Whitney Canada Corp.
- Gas detection system23 Jul 2026US 2026/0210924 A1GE Vernova Infrastructure Technology LLC
- Fuel coking detections through cross channel sensing and ai16 Jul 2026US 2026/0200600 A1Rtx Corporation
- Method and computer program for detecting surge events in a turbine engine28 May 2026US 2026/0146560 A1Airbus Operations S.L.U.
Most cited
By later US patents
- System and method for providing gas turbine engine output torque sensor validation and sensor backup using a speed sensor193US 8,352,149 B2Honeywell International Inc. · 2013
- Methods and systems for process adaptation in an internet of things downstream oil and gas environment78US 10,732,621 B2Strong Force IOT Portfolio 2016, LLC · 2020
- Methods and systems for detection in an industrial internet of things data collection environment with frequency band adjustments for diagnosing oil and gas production equipment78US 11,029,680 B2Strong Force IOT Portfolio 2016, LLC · 2021
- Operation method of a turbine fracturing device and a turbine fracturing device77US 11,560,779 B2Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. · 2023
- Emergency lubrication system73US 7,387,189 B2United Technologies Corporation · 2008