F04D 29/052
Axially shiftable rotors
Official title: Axially shiftable rotors (F04D29/051 takes precedence {; control by creating a by-pass F04D27/0246})
F04D29/052 (Axially shiftable rotors) appears on 62 US grants and 56 published applications in this corpus.
Search patents in F04D- Granted patents
- 62
- Published applications
- 56
- Assignees
- 53
- Inventors
- 144
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 4 |
| 2008 | 2 | 4 |
| 2009 | 4 | 3 |
| 2010 | 3 | 1 |
| 2011 | 3 | 2 |
| 2012 | 1 | 4 |
| 2013 | 2 | 2 |
| 2014 | 1 | 5 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 5 | 2 |
| 2018 | 3 | 3 |
| 2019 | 2 | 3 |
| 2020 | 4 | 4 |
| 2021 | 3 | 1 |
| 2022 | 5 | 1 |
| 2023 | 2 | 4 |
| 2024 | 4 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Dual-pressure blower for positive air pressure device333US 6,349,724 B1Compumedics Sleep Pty Ltd · 2002
- Turbomachine with active tip clearance control57US 5,263,816 AGeneral Motors Corporation · 1993
- Micro gas turbine engine with active tip clearance control43US 6,692,222 B2Honda Giken Kogyo Kabushiki Kaisha · 2004
- Rotor thrust balance activated tip clearance control system41US 7,909,566 B1Florida Turbine Technologies, Inc. · 2011
- Gas turbine engine blade tip clearance apparatus and method40US 8,011,883 B2United Technologies Corporation · 2011