F23R 3/32
Being tubular
Official title: being tubular
F23R3/32 (Being tubular) appears on 105 US grants and 81 published applications in this corpus.
Search patents in F23R- Granted patents
- 105
- Published applications
- 81
- Assignees
- 52
- Inventors
- 224
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 0 | 9 |
| 2014 | 3 | 5 |
| 2015 | 7 | 3 |
| 2016 | 9 | 11 |
| 2017 | 1 | 8 |
| 2018 | 9 | 3 |
| 2019 | 6 | 7 |
| 2020 | 5 | 3 |
| 2021 | 5 | 0 |
| 2022 | 2 | 3 |
| 2023 | 6 | 6 |
| 2024 | 3 | 4 |
| 2025 | 3 | 2 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dome combustor with air blast22 Sep 2026US 12,742,551 B1Rtx Corporation
- Combustor for a micro-turbine gas generator28 Jul 2026US 12,693,020 B2Jetoptera, Inc.
- Stabilizer for plurality of mixing tubes of micromixer and related method28 Apr 2026US 12,613,037 B1GE Vernova Infrastructure Technology LLC
- Modular injector bolt for an engine24 Mar 2026US 12,584,632 B2Rtx Corporation
- Unitary case integrated flow scoops28 Oct 2025US 12,455,078 B1Rtx Corporation
- Aircraft exhaust waste heat recovery for icing mitigation1 Oct 2026US 2026/0298141 A1General Electric Company
- Burner assembly, gas turbine combustor, and gas turbine27 Aug 2026US 2026/0251305 A1Mitsubishi Heavy Industries, Ltd.
- Method for operating a combustion system of a turbomachine for a flight propulsion system, and turbomachine14 May 2026US 2026/0132738 A1MTU Aero Engines AG
- Combustor and gas turbine26 Jun 2025US 2025/0207778 A1Mitsubishi Heavy Industries, Ltd.
- Modular injector bolt for an engine1 May 2025US 2025/0137643 A1Rtx Corporation
Most cited
By later US patents
- Combustion chamber of a gas turbine with pre-mixing and pre-evaporation elements121US 4,408,461 ABBC Brown, Boveri & Company, Limited · 1983
- Flashback resistant fuel staged premixed combustor100US 5,235,814 AGeneral Electric Company · 1993
- Dynamically uncoupled low NOx combustor having multiple premixers with axial staging92US 5,943,866 AGeneral Electric Company · 1999
- Heavy fuel combustor87US 4,412,414 AGeneral Motors Corporation · 1983
- Fuel/air premixer for gas turbine combustor77US 7,434,401 B2Japan Aerospace Exploration Agency · 2008