F04D 29/053
Shafts
F04D29/053 (Shafts) appears on 544 US grants and 712 published applications in this corpus.
Search patents in F04D- Granted patents
- 544
- Published applications
- 712
- Assignees
- 283
- Inventors
- 1,346
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 2 |
| 2006 | 2 | 1 |
| 2007 | 0 | 5 |
| 2008 | 1 | 4 |
| 2009 | 1 | 4 |
| 2010 | 2 | 7 |
| 2011 | 5 | 10 |
| 2012 | 4 | 15 |
| 2013 | 6 | 19 |
| 2014 | 12 | 15 |
| 2015 | 14 | 54 |
| 2016 | 19 | 71 |
| 2017 | 25 | 117 |
| 2018 | 51 | 98 |
| 2019 | 92 | 53 |
| 2020 | 83 | 46 |
| 2021 | 49 | 47 |
| 2022 | 38 | 40 |
| 2023 | 41 | 33 |
| 2024 | 49 | 32 |
| 2025 | 22 | 20 |
| 2026 | 14 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flexible support structure for a geared architecture gas turbine engine29 Sep 2026US 12,747,675 B2Rtx Corporation
- Portable fan25 Aug 2026US 12,716,421 B2Milwaukee Electric Tool Corporation
- Monolithic superstructure for gas turbine engines21 Jul 2026US 12,687,128 B2General Electric Company
- Fan shaft structure7 Jul 2026US 12,674,465 B2Global WIN Technology Co., Ltd.
- Geared architecture for high speed and small volume fan drive turbine16 Jun 2026US 12,655,811 B2Rtx Corporation
- Turbocharger for road vehicles6 Aug 2026US 2026/0226912 A1Ferrari S.P. A.
- Geared architecture for high speed and small volume fan drive turbine2 Jul 2026US 2026/0185495 A1Rtx Corporation
- Efficient, low pressure ratio propulsor for gas turbine engines2 Jul 2026US 2026/0185533 A1Rtx Corporation
- Fan and electronic device employing fan30 Apr 2026US 2026/0117785 A1Champ Tech Optical (Foshan) Corporation
- High temperature gas compressor, systems, and methods thereof2 Apr 2026US 2026/0092605 A1NuScale Power, LLC
Most cited
By later US patents
- Thermally insulating turbine coupling88US 8,840,359 B2The United States of America as represented by the Secretary of the Navy · 2014
- Geared architecture for high speed and small volume fan drive turbine87US 8,747,055 B2United Technologies Corporation · 2014
- Assembly structure for a turbo compressor65US 6,471,493 B2LG Electronics Inc. · 2002
- Flexible support structure for a geared architecture gas turbine engine64US 10,590,802 B2United Technologies Corporation · 2020
- Flexible support structure for a geared architecture gas turbine engine55US 10,227,893 B2United Technologies Corporation · 2019