F01D 9/04
Forming ring or sector
Official title: forming ring or sector
F01D9/04 (Forming ring or sector) appears on 4,574 US grants and 4,961 published applications in this corpus.
Search patents in F01D- Granted patents
- 4,574
- Published applications
- 4,961
- Assignees
- 384
- Inventors
- 6,773
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 10 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 13 | 0 |
| 1986 | 9 | 0 |
| 1987 | 15 | 0 |
| 1988 | 11 | 0 |
| 1989 | 24 | 0 |
| 1990 | 14 | 0 |
| 1991 | 9 | 0 |
| 1992 | 11 | 0 |
| 1993 | 16 | 0 |
| 1994 | 14 | 0 |
| 1995 | 16 | 0 |
| 1996 | 18 | 0 |
| 1997 | 17 | 0 |
| 1998 | 16 | 0 |
| 1999 | 10 | 0 |
| 2000 | 15 | 0 |
| 2001 | 22 | 4 |
| 2002 | 30 | 26 |
| 2003 | 38 | 33 |
| 2004 | 26 | 53 |
| 2005 | 40 | 71 |
| 2006 | 47 | 50 |
| 2007 | 36 | 89 |
| 2008 | 33 | 88 |
| 2009 | 49 | 96 |
| 2010 | 79 | 156 |
| 2011 | 66 | 138 |
| 2012 | 145 | 141 |
| 2013 | 102 | 176 |
| 2014 | 138 | 203 |
| 2015 | 128 | 238 |
| 2016 | 131 | 603 |
| 2017 | 225 | 463 |
| 2018 | 341 | 459 |
| 2019 | 553 | 385 |
| 2020 | 559 | 384 |
| 2021 | 382 | 239 |
| 2022 | 339 | 186 |
| 2023 | 227 | 207 |
| 2024 | 240 | 193 |
| 2025 | 200 | 152 |
| 2026 | 100 | 128 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Turbine engine vane baffle6 Oct 2026US 12,753,698 B1Rtx Corporation
- Stator device for disposition within a given turbine casing of a turbomachine, connection system for a turbmachine, and turbomachine6 Oct 2026US 12,753,702 B2MTU Aero Engines AG
- Vane with pin mount and anti-rotation6 Oct 2026US 12,753,703 B2Rtx Corporation
- Air bleed slots for gas turbine engines6 Oct 2026US 12,753,725 B1Pratt & Whitney Canada Corp.
- Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes29 Sep 2026US 12,747,735 B2General Electric Company
- Internal baffle for a gas turbine engine vane8 Oct 2026US 2026/0309033 A1Rtx Corporation
- Assembly for maintaining and retaining a gas turbine engine component8 Oct 2026US 2026/0309037 A1Rtx Corporation
- Assembly for maintaining and retaining a gas turbine engine component8 Oct 2026US 2026/0309039 A1Rtx Corporation
- Hot gas path segment with seal slot cooling groove8 Oct 2026US 2026/0309040 A1GE Vernova Infrastructure Technology LLC
- Turbine engine rotor shroud8 Oct 2026US 2026/0309053 A1Rtx Corporation
Most cited
By later US patents
- Aircraft engine with inter-turbine engine frame supported counter rotating low pressure turbine rotors329US 6,619,030 B1General Electric Company · 2003
- Variable geometry guide vane for a gas turbine engine199US 7,632,064 B2United Technologies Corporation · 2009
- Floating vane turbine nozzle181US 5,630,700 AGeneral Electric Company · 1997
- Ceramic matrix composite turbine vane148US 6,648,597 B1Siemens Westinghouse Power Corporation · 2003
- Randomly-oriented polycrystalline silicon carbide coatings for abrasive grains117US 4,606,738 AGeneral Electric Company · 1986