F05D 2220/7646
Double fed induction generators
Official title: Double fed induction generators (DFIGs)
F05D2220/7646 (Double fed induction generators) appears on 4 US grants and 4 published applications in this corpus.
Search patents in F05D- Granted patents
- 4
- Published applications
- 4
- Assignees
- 4
- Inventors
- 10
- Latest grant
- 30 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year.
Recent patents
- Independent speed variable frequency generator for more electric aircraft using brushless doubly-fed machines (BDFM)30 May 2023US 11,661,201 B2Ohio State Innovation Foundation
- Doubly-fed induction generator system for a gas turbine19 Jun 2018US 10,003,239 B1General Electric Company
- Electrical power generator for a gas turbine engine8 Aug 2017US 9,729,096 B2ROLLS-ROYCE plc
- Turbine-generator system with DC output21 Feb 2017US 9,577,557 B2ABB Schweiz AG
- Independent speed variable frequency generator for more electric aircraft using brushless doubly-fed machines (bdfm)9 Dec 2021US 2021/0380263 A1Ohio State Innovation Foundation
- Doubly-fed induction generator system for a gas turbine21 Jun 2018US 2018/0175700 A1General Electric Company
- Electrical power generator for a gas turbine engine27 Aug 2015US 2015/0244296 A1ROLLS-ROYCE plc
- Turbine-Generator System with DC Output23 Apr 2015US 2015/0108761 A1ABB Schweiz AG
Most cited
By later US patents