F05D
Indexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or
Official title: Indexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants
F05D (Indexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or) appears on 45,337 US grants and 51,186 published applications in this corpus.
Search patents in F05D- Granted patents
- 45,337
- Published applications
- 51,186
- Assignees
- 4,538
- Inventors
- 51,683
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 84 | 0 |
| 1977 | 67 | 0 |
| 1978 | 52 | 0 |
| 1979 | 55 | 0 |
| 1980 | 75 | 0 |
| 1981 | 77 | 0 |
| 1982 | 51 | 0 |
| 1983 | 77 | 0 |
| 1984 | 101 | 0 |
| 1985 | 100 | 0 |
| 1986 | 69 | 0 |
| 1987 | 91 | 0 |
| 1988 | 109 | 0 |
| 1989 | 120 | 0 |
| 1990 | 97 | 0 |
| 1991 | 116 | 0 |
| 1992 | 174 | 0 |
| 1993 | 184 | 0 |
| 1994 | 160 | 0 |
| 1995 | 184 | 0 |
| 1996 | 205 | 0 |
| 1997 | 196 | 0 |
| 1998 | 228 | 0 |
| 1999 | 234 | 0 |
| 2000 | 277 | 0 |
| 2001 | 403 | 102 |
| 2002 | 465 | 382 |
| 2003 | 475 | 456 |
| 2004 | 432 | 657 |
| 2005 | 419 | 790 |
| 2006 | 528 | 833 |
| 2007 | 477 | 1045 |
| 2008 | 495 | 1120 |
| 2009 | 650 | 1284 |
| 2010 | 780 | 1655 |
| 2011 | 887 | 1424 |
| 2012 | 1247 | 1650 |
| 2013 | 1285 | 2143 |
| 2014 | 1484 | 2134 |
| 2015 | 1484 | 2643 |
| 2016 | 1527 | 3876 |
| 2017 | 2068 | 3606 |
| 2018 | 2828 | 3843 |
| 2019 | 3828 | 3406 |
| 2020 | 3992 | 3761 |
| 2021 | 3357 | 2975 |
| 2022 | 3375 | 2669 |
| 2023 | 2934 | 2619 |
| 2024 | 2889 | 2416 |
| 2025 | 2457 | 2034 |
| 2026 | 1388 | 1663 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F05D 2260/00FunctionIndexing code21,361
- F05D 2220/00ApplicationIndexing code17,688
- F05D 2240/00ComponentsIndexing code14,901
- F05D 2230/00ManufactureIndexing code10,303
- F05D 2250/00GeometryIndexing code9,271
- F05D 2300/00MaterialsIndexing code7,623
- F05D 2270/00ControlIndexing code6,083
- F05D 2210/00Working fluidsIndexing code514
All 9 main groupsShow fewer
Recent patents
- Air-oil separator6 Oct 2026US 12,752,225 B2Pratt & Whitney Canada Corp.
- Monolithic molded fan components and method for their manufacture6 Oct 2026US 12,752,499 B2Evapco, Inc.
- Systems and methods of servicing equipment6 Oct 2026US 12,752,747 B2General Electric Company
- Multicore hybrid-electric powertrain controller6 Oct 2026US 12,752,769 B2Pratt & Whitney Canada Corp.
- Aircraft with an unducted fan propulsor6 Oct 2026US 12,752,923 B2General Electric Company
- Fluid system and method of separating oil from air in aircraft engine8 Oct 2026US 2026/0306988 A1Pratt & Whitney Canada Corp.
- Method for attaching a metal reinforcement on a leading edge of a turbomachine blade8 Oct 2026US 2026/0307338 A1Safran Aerospace Composites
- Aircraft hybrid electric propulsion system8 Oct 2026US 2026/0307813 A1Pratt & Whitney Canada Corp.
- Transpiration-cooled systems having permeable and non-permeable portions8 Oct 2026US 2026/0307827 A1Blue Origin Manufacturing, LLC
- Autonomous Modular Flare Gas Conversion Systems and Methods8 Oct 2026US 2026/0308093 A1M2X Energy Inc.
Most cited
By later US patents
- Star gear system with lubrication circuit and lubrication method therefor618US 6,223,616 B1United Technologies Corporation · 2001
- Forming structures from CAD solid models580US 6,391,251 B1Optomec Design Company · 2002
- Coupling system for a planetary gear train525US 5,433,674 AUnited Technologies Corporation · 1995
- Mobile electric power generation for hydraulic fracturing of subsurface geological formations496US 9,534,473 B2Evolution Well Services, LLC · 2017
- Geartrain coupling for a turbofan engine421US 7,021,042 B2United Technologies Corporation · 2006