Y02T 50/50
On board measures aiming to increase energy efficiency
Y02T50/50 (On board measures aiming to increase energy efficiency) appears on 1,538 US grants and 1,666 published applications in this corpus.
Search patents in Y02T- Granted patents
- 1,538
- Published applications
- 1,666
- Assignees
- 387
- Inventors
- 2,524
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 16 | 0 |
| 2000 | 15 | 0 |
| 2001 | 18 | 4 |
| 2002 | 16 | 13 |
| 2003 | 20 | 25 |
| 2004 | 17 | 24 |
| 2005 | 16 | 19 |
| 2006 | 12 | 27 |
| 2007 | 17 | 32 |
| 2008 | 14 | 45 |
| 2009 | 22 | 48 |
| 2010 | 22 | 56 |
| 2011 | 37 | 53 |
| 2012 | 42 | 55 |
| 2013 | 44 | 80 |
| 2014 | 54 | 67 |
| 2015 | 54 | 82 |
| 2016 | 59 | 133 |
| 2017 | 89 | 138 |
| 2018 | 107 | 146 |
| 2019 | 133 | 137 |
| 2020 | 139 | 129 |
| 2021 | 112 | 149 |
| 2022 | 113 | 83 |
| 2023 | 110 | 74 |
| 2024 | 68 | 23 |
| 2025 | 52 | 16 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressed air supply system of aircraft21 Apr 2026US 12,606,310 B2Kawasaki Jukogyo Kabushiki Kaisha
- 100% ambient air environmental control system7 Apr 2026US 12,595,065 B2Hamilton Sundstrand Corporation
- Commercial supersonic aircraft and associated systems and methods24 Mar 2026US 12,583,581 B2Boom Technology, Inc.
- Manned and unmanned aircraft3 Mar 2026US 12,565,341 B2Dronexus Aero LLC
- Steam turbine bypass for increased water heat absorption capacity steam injected turbine engine10 Feb 2026US 12,546,250 B2Rtx Corporation
- Manned and unmanned aircraft9 Jul 2026US 2026/0192948 A1Dronexus Aero LLC
- Aircraft air-conditioning system having a two-stage cooling circuit and aircraft having an air-conditioning system28 May 2026US 2026/0145796 A1
- Drone systems and methods30 Apr 2026US 2026/0116535 A1Duplicent, LLC
- Controlling a compressor of a turbine engine30 Apr 2026US 2026/0117709 A1GE Avio S. r. l.
- Environmental control system with cabin vent-air cooled heat exchanger and water vapor cogeneration26 Mar 2026US 2026/0084823 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Integrated thermal management and coolant system for an aircraft196US 6,415,595 B1Hamilton Sundstrand Corporation · 2002
- Aircraft191US 5,810,284 A1998
- Thermal and energy management method and apparatus for an aircraft164US 6,182,435 B2Hamilton Sundstrand Corporation · 2001
- Regenerative condensing cycle163US 5,461,882 AUnited Technologies Corporation · 1995
- Aircraft cooling method152US 5,414,992 AUnited Technologies Corporation · 1995