F25B 33/00
Boilers
Official title: Boilers; Analysers; Rectifiers (boiler-absorbers F25B35/00)
F25B33/00 (Boilers) appears on 155 US grants and 62 published applications in this corpus.
Search patents in F25B- Granted patents
- 155
- Published applications
- 62
- Assignees
- 70
- Inventors
- 257
- Latest grant
- 7 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 10 | 1 |
| 2002 | 7 | 8 |
| 2003 | 9 | 6 |
| 2004 | 9 | 7 |
| 2005 | 4 | 4 |
| 2006 | 2 | 0 |
| 2007 | 2 | 0 |
| 2008 | 2 | 4 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 5 | 3 |
| 2012 | 0 | 2 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 5 |
| 2017 | 5 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 1 |
| 2020 | 4 | 3 |
| 2021 | 1 | 6 |
| 2022 | 4 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Heat-driven vapor-compression system for air conditioning and refrigeration7 May 2024US 11,976,853 B2HyperBorean, Inc.
- Heat pump and method for controlling compressor based on operation of boiler4 Apr 2023US 11,619,425 B2LG Electronics Inc.
- Oil separator and refrigeration cycle apparatus4 Oct 2022US 11,460,227 B2Mitsubishi Electric Corporation
- In-vehicle absorption heat pump device27 Sep 2022US 11,454,431 B2Aisin Corporation
- Low charge packaged refrigeration systems14 Jun 2022US 11,359,844 B2Evapco, Inc.
- Heat-Driven Vapor-Compression System for Air Conditioning and Refrigeration11 Jul 2024US 2024/0230173 A1HyperBorean, Inc.
- Low charge packaged refrigeration systems27 Oct 2022US 2022/0341639 A1Evapco, Inc.
- Heat-Driven Vapor-Compression System for Air Conditioning and Refrigeration18 Aug 2022US 2022/0260289 A1HyperBorean, Inc.
- Evaporator30 Dec 2021US 2021/0404712 A1Wuyi University
- Microwave heat converter and systems2 Dec 2021US 2021/0370743 A1
Most cited
By later US patents
- Thermoelectric power generation utilizing convective heat flow186US 6,598,405 B2Bsst LLC · 2003
- Efficiency thermoelectrics utilizing thermal isolation179US 6,539,725 B2Bsst LLC · 2003
- Thermoelectric power generation systems140US 6,625,990 B2Bsst LLC · 2003
- Efficiency thermoelectrics utilizing convective heat flow127US 6,672,076 B2Bsst LLC · 2004
- Thermoelectric transient cooling and heating systems117US 6,637,210 B2Bsst LLC · 2003