F05D 2220/76
An electrical generator
Official title: an electrical generator
F05D2220/76 (An electrical generator) appears on 1,672 US grants and 2,181 published applications in this corpus.
Search patents in F05D- Granted patents
- 1,672
- Published applications
- 2,181
- Assignees
- 476
- Inventors
- 3,078
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 4 |
| 2004 | 2 | 14 |
| 2005 | 4 | 5 |
| 2006 | 7 | 15 |
| 2007 | 8 | 23 |
| 2008 | 9 | 27 |
| 2009 | 14 | 20 |
| 2010 | 23 | 53 |
| 2011 | 25 | 24 |
| 2012 | 31 | 24 |
| 2013 | 23 | 35 |
| 2014 | 21 | 37 |
| 2015 | 22 | 58 |
| 2016 | 27 | 81 |
| 2017 | 47 | 88 |
| 2018 | 52 | 140 |
| 2019 | 90 | 162 |
| 2020 | 143 | 191 |
| 2021 | 155 | 194 |
| 2022 | 174 | 237 |
| 2023 | 218 | 226 |
| 2024 | 230 | 195 |
| 2025 | 209 | 178 |
| 2026 | 129 | 149 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas turbine engine with electric machine in engine core6 Oct 2026US 12,753,721 B2Pratt & Whitney Canada Corp.
- Air system for aircraft propulsion system electric machine29 Sep 2026US 12,747,026 B2Rtx Corporation
- Braking control assembly for an aircraft gas turbine engine and method of using same29 Sep 2026US 12,749,993 B2Pratt & Whitney Canada Corp.
- Mixture separation in bottoming cycle22 Sep 2026US 12,742,415 B2Rtx Corporation
- Aircraft propulsion system with shielded electric machine22 Sep 2026US 12,742,420 B2Rtx Corporation
- Double offset reduction gearbox with motor drive for turboprop8 Oct 2026US 2026/0309090 A1Pratt & Whitney Canada Corp.
- Gas turbine propulsion system with variable pitch fan and method for operating the system8 Oct 2026US 2026/0309094 A1Rtx Corporation
- Combustion system and control method8 Oct 2026US 2026/0309100 A1IHI Corporation
- Gas turbine generator1 Oct 2026US 2026/0298104 A1Honda Motor Co., Ltd.
- Aircraft powerplant gearbox with selectable power coupler1 Oct 2026US 2026/0298146 A1Rtx Corporation
Most cited
By later US patents
- Mobile electric power generation for hydraulic fracturing of subsurface geological formations496US 9,534,473 B2Evolution Well Services, LLC · 2017
- Mobile electric power generation for hydraulic fracturing of subsurface geological formations287US 9,562,420 B2Evolution Well Services, LLC · 2017
- Turbine chilling for oil field power generation244US 9,995,218 B2U.S. Well Services, LLC · 2018
- Systems and methods for a mobile power plant with improved mobility and reduced trailer count223US 10,030,579 B2General Electric Company · 2018
- Systems and methods for a mobile power plant with improved mobility and reduced trailer count208US 10,184,397 B2General Electric Company · 2019