F05D 2220/3217
For the first stage of a compressor or a low pressure compressor
Official title: for the first stage of a compressor or a low pressure compressor
F05D2220/3217 (For the first stage of a compressor or a low pressure compressor) appears on 101 US grants and 95 published applications in this corpus.
Search patents in F05D- Granted patents
- 101
- Published applications
- 95
- Assignees
- 26
- Inventors
- 230
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 3 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 9 |
| 2017 | 0 | 4 |
| 2018 | 2 | 6 |
| 2019 | 10 | 6 |
| 2020 | 21 | 22 |
| 2021 | 12 | 9 |
| 2022 | 18 | 7 |
| 2023 | 11 | 8 |
| 2024 | 11 | 8 |
| 2025 | 9 | 5 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Super-cooled ice impact protection for a gas turbine engine3 Mar 2026US 12,565,841 B2ROLLS-ROYCE plc
- Tailoring aircraft powerplant split line parameter with inflatable bladder23 Dec 2025US 12,503,977 B2Rtx Corporation
- Air intake module for an aircraft turbomachine and method for de-icing thereof16 Dec 2025US 12,497,184 B2Safran Nacelles
- Gas turbine engine with bow wave mitigation14 Oct 2025US 12,442,304 B1General Electric Company
- Tailoring aircraft powerplant split line with inflatable bladder(s)7 Oct 2025US 12,435,641 B1Rtx Corporation
- Tailoring aircraft powerplant split line with inflatable bladder(s)9 Oct 2025US 2025/0314180 A1Rtx Corporation
- Tailoring aircraft powerplant split line parameter with inflatable bladder9 Oct 2025US 2025/0314201 A1Rtx Corporation
- Super-cooled ice impact protection for a gas turbine engine10 Jul 2025US 2025/0223907 A1ROLLS-ROYCE plc
- Turbomachine assembly comprising a half-shell casing bearing variable-pitch inlet stator vanes10 Apr 2025US 2025/0116203 A1Safran Aircraft Engines
- Compressor rotor blade airfoils10 Apr 2025US 2025/0117905 A1GE Infrastructure Technology LLC
Most cited
By later US patents
- Combination low spool generator and ram air turbine generator14US 8,519,555 B2Pratt & Whitney Canada Corp. · 2013
- Low radius ratio fan for a gas turbine engine12US 9,239,062 B2General Electric Company · 2016
- Engine casing treatment for reducing circumferentially variable distortion11US 10,914,318 B2General Electric Company · 2021
- Vacuum pump8US 6,755,611 B1BOC Edwards Japan Limited · 2004
- Fan blade protection system8US 8,834,126 B2United Technologies Corporation · 2014