F01D 19/00
Starting of machines or engines
Official title: Starting of machines or engines; Regulating, controlling, or safety means in connection therewith (warming-up before starting F01D25/10; turning or inching gear F01D25/34)
F01D19/00 (Starting of machines or engines) appears on 501 US grants and 526 published applications in this corpus.
Search patents in F01D- Granted patents
- 501
- Published applications
- 526
- Assignees
- 125
- Inventors
- 1,160
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 6 |
| 2004 | 5 | 5 |
| 2005 | 5 | 3 |
| 2006 | 2 | 6 |
| 2007 | 1 | 9 |
| 2008 | 0 | 7 |
| 2009 | 5 | 7 |
| 2010 | 8 | 14 |
| 2011 | 8 | 15 |
| 2012 | 8 | 16 |
| 2013 | 15 | 22 |
| 2014 | 12 | 24 |
| 2015 | 12 | 36 |
| 2016 | 14 | 26 |
| 2017 | 24 | 46 |
| 2018 | 35 | 49 |
| 2019 | 56 | 38 |
| 2020 | 41 | 52 |
| 2021 | 51 | 32 |
| 2022 | 40 | 31 |
| 2023 | 34 | 28 |
| 2024 | 33 | 24 |
| 2025 | 27 | 21 |
| 2026 | 14 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Braking control assembly for an aircraft gas turbine engine and method of using same29 Sep 2026US 12,749,993 B2Pratt & Whitney Canada Corp.
- Propulsion system having fluidly separate lubrication systems for propulsors and turbo-engine11 Aug 2026US 12,704,096 B2General Electric Company
- Aircraft engine starter having an integrated data acquisition system14 Jul 2026US 12,680,468 B2Unison Industries, LLC
- System and method for calibrating hydraulic starters for turbomachines7 Jul 2026US 12,674,421 B2GE Vernova Infrastructure Technology LLC
- Hybrid gas turbine engine starting control30 Jun 2026US 12,668,368 B2Rtx Corporation
- Valve for an aircraft turbine engine2 Jul 2026US 2026/0185626 A1Safran Aircraft Engines
- Power converter topology and control scheme for mitigating thermal bowing in gas turbine engines11 Jun 2026US 2026/0160187 A1General Electric Company
- Method for monitoring health of an electric machine11 Jun 2026US 2026/0163450 A1GE Aviation Systems LLC
- System and method for calibrating hydraulic starters for turbomachines26 Mar 2026US 2026/0085637 A1GE Infrastructure Technology LLC
- Propulsion system having fluidly separate lubrication systems for propulsors and turbo-engine12 Mar 2026US 2026/0071576 A1General Electric Company
Most cited
By later US patents
- Turbine installation having a connectable auxiliary group115US 7,614,239 B2ALSTOM Technology Ltd · 2009
- Device and method for gas turbine unlocking112US 9,845,730 B2Nuovo Pignone S.p.A. · 2017
- Power plant start-up method and method of venting the power plant75US 8,266,883 B2General Electric Company · 2012
- Starting apparatus for gas turbine-generator mounted on electric motor driven motorcar72US 4,119,861 ATokyo Shibaura Electric Co., Ltd. · 1978
- Method of controlling operation of rotary machines by diagnosing abnormal conditions65US 4,302,813 AHitachi, Ltd. · 1981