F25B 27/00
Machines, plants or systems, using particular sources of energy
Official title: Machines, plants or systems, using particular sources of energy (F25B30/06 takes precedence)
F25B27/00 (Machines, plants or systems, using particular sources of energy) appears on 1,360 US grants and 1,261 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,360
- Published applications
- 1,261
- Assignees
- 663
- Inventors
- 2,694
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 22 | 0 |
| 1978 | 13 | 0 |
| 1979 | 23 | 0 |
| 1980 | 25 | 0 |
| 1981 | 24 | 0 |
| 1982 | 21 | 0 |
| 1983 | 20 | 0 |
| 1984 | 22 | 0 |
| 1985 | 17 | 0 |
| 1986 | 13 | 0 |
| 1987 | 11 | 0 |
| 1988 | 11 | 0 |
| 1989 | 18 | 0 |
| 1990 | 18 | 0 |
| 1991 | 13 | 0 |
| 1992 | 19 | 0 |
| 1993 | 26 | 0 |
| 1994 | 20 | 0 |
| 1995 | 15 | 0 |
| 1996 | 12 | 0 |
| 1997 | 9 | 0 |
| 1998 | 18 | 0 |
| 1999 | 16 | 0 |
| 2000 | 15 | 0 |
| 2001 | 18 | 6 |
| 2002 | 22 | 28 |
| 2003 | 32 | 33 |
| 2004 | 34 | 38 |
| 2005 | 27 | 46 |
| 2006 | 22 | 64 |
| 2007 | 28 | 32 |
| 2008 | 23 | 32 |
| 2009 | 16 | 29 |
| 2010 | 17 | 37 |
| 2011 | 16 | 43 |
| 2012 | 8 | 43 |
| 2013 | 20 | 44 |
| 2014 | 28 | 61 |
| 2015 | 35 | 95 |
| 2016 | 48 | 84 |
| 2017 | 69 | 60 |
| 2018 | 61 | 74 |
| 2019 | 62 | 81 |
| 2020 | 86 | 88 |
| 2021 | 48 | 52 |
| 2022 | 59 | 48 |
| 2023 | 51 | 41 |
| 2024 | 49 | 40 |
| 2025 | 43 | 40 |
| 2026 | 13 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Distillation using mechanical advantage and a single fluid15 Sep 2026US 12,735,332 B1
- Air conditioning system and transportation system including same11 Aug 2026US 12,704,296 B2Thevu LLC
- Multi-capacity compressor with variable speed drive and method of use7 Jul 2026US 12,674,604 B2Regal Beloit America, Inc.
- Solar powered refrigerator device16 Jun 2026US 12,656,043 B2
- Energy utilization system and method for producing carbon-containing material2 Jun 2026US 12,644,193 B2Daikin Industries, Ltd.
- Waste heat-to-steam supply system and steam supply method for alkaline electrolytic cells10 Sep 2026US 2026/0266516 A1Northwest Electric Power Design Institute Co., Ltd. of China Power Engineering Consulting Group
- Apparatus and method for mitigating santa ana wind fire hazards13 Aug 2026US 2026/0233037 A1Viridis Arbor LLC
- Integrated electrolyzer and absorption chiller system and methods of operating the same30 Jul 2026US 2026/0218396 A1Bloom Energy Corporation
- Portable refrigerator9 Jul 2026US 2026/0194284 A1Anker Innovations Technology Co., Ltd.
- Hybrid solar and battery powered thermoelectric cooler25 Jun 2026US 2026/0177294 A1Luya Labs Inc.
Most cited
By later US patents
- Thermoelectric power generation utilizing convective heat flow186US 6,598,405 B2Bsst LLC · 2003
- Inner shoe with heat engine for boot or shoe140US 4,823,482 A1989
- Temperature control system and method for efficiently obtaining and maintaining the temperature in a conditioned space140US 6,095,427 AThermo King Corporation · 2000
- Auxiliary heating and air conditioning system for a motor vehicle139US 5,901,572 ARocky Research · 1999
- Intelligent power management system139US 8,295,950 B12012