Y02B 30/00
Energy efficient heating, ventilation or air conditioning [hvac]
Official title: Energy efficient heating, ventilation or air conditioning [HVAC]
Y02B30/00 (Energy efficient heating, ventilation or air conditioning [hvac]) appears on 12,080 US grants and 12,126 published applications in this corpus.
Search patents in Y02B- Granted patents
- 12,080
- Published applications
- 12,126
- Assignees
- 4,381
- Inventors
- 21,634
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 69 | 0 |
| 1977 | 78 | 0 |
| 1978 | 91 | 0 |
| 1979 | 88 | 0 |
| 1980 | 92 | 0 |
| 1981 | 126 | 0 |
| 1982 | 118 | 0 |
| 1983 | 113 | 0 |
| 1984 | 145 | 0 |
| 1985 | 129 | 0 |
| 1986 | 127 | 0 |
| 1987 | 157 | 0 |
| 1988 | 111 | 0 |
| 1989 | 128 | 0 |
| 1990 | 130 | 0 |
| 1991 | 131 | 0 |
| 1992 | 114 | 0 |
| 1993 | 133 | 0 |
| 1994 | 145 | 0 |
| 1995 | 139 | 0 |
| 1996 | 138 | 0 |
| 1997 | 126 | 0 |
| 1998 | 188 | 0 |
| 1999 | 152 | 0 |
| 2000 | 156 | 0 |
| 2001 | 175 | 43 |
| 2002 | 192 | 144 |
| 2003 | 190 | 214 |
| 2004 | 170 | 259 |
| 2005 | 162 | 298 |
| 2006 | 153 | 296 |
| 2007 | 162 | 303 |
| 2008 | 128 | 340 |
| 2009 | 124 | 383 |
| 2010 | 179 | 467 |
| 2011 | 185 | 515 |
| 2012 | 248 | 503 |
| 2013 | 275 | 537 |
| 2014 | 323 | 593 |
| 2015 | 362 | 699 |
| 2016 | 429 | 661 |
| 2017 | 562 | 723 |
| 2018 | 591 | 758 |
| 2019 | 685 | 747 |
| 2020 | 691 | 804 |
| 2021 | 612 | 800 |
| 2022 | 622 | 694 |
| 2023 | 606 | 619 |
| 2024 | 563 | 388 |
| 2025 | 413 | 224 |
| 2026 | 154 | 114 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- Y02B 30/70Efficient control or regulation technologies6,067
- Y02B 30/54Free-cooling systems964
- Y02B 30/56Heat recovery units885
- Y02B 30/62Absorption based systems866
- Y02B 30/52Heat recovery pumps, i.e. heat pump based systems or units able to719
- Y02B 30/12Hot water central heating systems using heat pumps374
- Y02B 30/13Hot air central heating systems using heat pumps197
- Y02B 30/90Passive houses175
Recent patents
- Humidifier29 Sep 2026US 12,747,878 B2LG Electronics Inc.
- Method for producing an exchanger element package for a vehicle8 Sep 2026US 12,729,875 B2Plastic Concept GmbH
- Beverage preparation machine and cooling module25 Aug 2026US 12,715,751 B2Koninklijke Douwe Egberts B. V.
- System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling25 Aug 2026US 12,716,598 B2Inertech IP LLC
- HVAC control system with cost target optimization25 Aug 2026US 12,716,606 B2Tyco Fire & Security GmbH
- Heat recovery ventilation unit with drainage27 Aug 2026US 2026/0251342 A1Zehnder Group International AG
- Cartridge-replaceable magnetic cooling system27 Aug 2026US 2026/0251361 A1Korea Institute of Materials Science
- Magnetic cooling device and cooling cycle apparatus27 Aug 2026US 2026/0251362 A1Samsung Electronics Co., Ltd.
- Use of rare earth borates in magnetic refrigeration materials and preparation method of rare earth borates20 Aug 2026US 2026/0242653 A1Ganjiang Innovation Academy, Chinese Academy of Sciences
- A water tank arrangement and a method arranged to circulate waste water in response to a predetermined temperature20 Aug 2026US 2026/0243076 A1E3 Equipment AB
Most cited
By later US patents
- Method and apparatus for quiet variable motor speed control1,483US 7,330,004 B2Lutron Electronics Co., Inc. · 2008
- Refrigeration monitor unit797US 6,453,687 B2Robertshaw Controls Company · 2002
- Home cleaning robot729US 6,459,955 B1The Procter & Gamble Company · 2002
- Apparatus and method for automatic climate control456US 5,395,042 ASmart Systems International · 1995
- System and method for energy usage curtailment424US 6,868,293 B1Itron, Inc. · 2005