F05D 2220/7642
Of the synchronous type
Official title: of the synchronous type
F05D2220/7642 (Of the synchronous type) appears on 42 US grants and 54 published applications in this corpus.
Search patents in F05D- Granted patents
- 42
- Published applications
- 54
- Assignees
- 28
- Inventors
- 105
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 2 | 4 |
| 2008 | 3 | 4 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 2 | 3 |
| 2012 | 4 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 4 | 6 |
| 2016 | 1 | 5 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 4 |
| 2020 | 6 | 3 |
| 2021 | 1 | 2 |
| 2022 | 4 | 1 |
| 2023 | 3 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 2 |
| 2026 | 0 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Hydrogen applications for turboexpander machines28 Jan 2025US 12,212,214 B2Sapphire Technologies, Inc.
- Producing power with turboexpander generators based on specified output conditions1 Oct 2024US 12,104,493 B2Sapphire Technologies, Inc.
- Hydrogen cooling turboexpander4 Jun 2024US 12,000,291 B2Sapphire Technologies, Inc.
- Multi-speed transmission to control variable APU speed and constant generator output frequency7 Nov 2023US 11,808,211 B2Hamilton Sundstrand Corporation
- Constant speed drive to control variable APU speed and constant generator output frequency11 Jul 2023US 11,697,998 B1Hamilton Sundstrand Corporation
- Bidirectional flowthrough turboexpander6 Aug 2026US 2026/0226844 A1Calnetix Technologies, LLC
- Power transfer assembly for an aircraft propulsion system23 Jul 2026US 2026/0210265 A1Rtx Corporation
- Method for managing power transitions between a generation mode and an assistance mode29 Jan 2026US 2026/0028917 A1Safran
- Electric power generation system and control method25 Sep 2025US 2025/0300480 A1Mitsubishi Heavy Industries, Ltd.
- Windmill brake for an auxiliary power unit15 May 2025US 2025/0158502 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Systems and methods for providing AC power from multiple turbine engine spools45US 8,039,983 B2The Boeing Company · 2011
- Method for aircraft engine start using synchronous generator and constant speed drive30US 8,742,605 B1Hamilton Sundstrand Corporation · 2014
- Integrated boost cavity ring generator for turbofan and turboshaft engines25US 8,198,744 B2General Electric Company · 2012
- Mixed mode power generation architecture24US 8,928,166 B2Hamilton Sundstrand Corporation · 2015
- Electrical power generator for a gas turbine engine19US 9,729,096 B2ROLLS-ROYCE plc · 2017