B01D 53/0438
Cooling or heating systems
Official title: {Cooling or heating systems}
B01D53/0438 (Cooling or heating systems) appears on 641 US grants and 864 published applications in this corpus.
Search patents in B01D- Granted patents
- 641
- Published applications
- 864
- Assignees
- 480
- Inventors
- 2,108
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 1 |
| 2002 | 8 | 9 |
| 2003 | 8 | 17 |
| 2004 | 11 | 15 |
| 2005 | 12 | 17 |
| 2006 | 12 | 10 |
| 2007 | 8 | 9 |
| 2008 | 8 | 12 |
| 2009 | 10 | 9 |
| 2010 | 6 | 10 |
| 2011 | 3 | 18 |
| 2012 | 5 | 23 |
| 2013 | 15 | 19 |
| 2014 | 16 | 20 |
| 2015 | 25 | 26 |
| 2016 | 22 | 37 |
| 2017 | 18 | 29 |
| 2018 | 31 | 40 |
| 2019 | 33 | 42 |
| 2020 | 26 | 35 |
| 2021 | 29 | 49 |
| 2022 | 42 | 70 |
| 2023 | 51 | 82 |
| 2024 | 50 | 82 |
| 2025 | 56 | 94 |
| 2026 | 41 | 89 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for direct air capture of water and CO26 Oct 2026US 12,752,234 B2Battelle Memorial Institute
- Carbon dioxide removal apparatus29 Sep 2026US 12,746,504 B2Honda Motor Co., Ltd.
- Catalyst reactor15 Sep 2026US 12,734,473 B2Taiyuan University of Technology
- Vehicle air conditioning system8 Sep 2026US 12,728,705 B2NGK Insulators, Ltd.
- Polymeric sorbent fiber compositions incorporating metal organic frameworks25 Aug 2026US 12,714,983 B2ExxonMobil Technology and Engineering Company
- Systems and methods for optimizing carbon dioxide capture using sorbents8 Oct 2026US 2026/0306990 A1GE Vernova Infrastructure Technology LLC
- Systems and methods for optimizing carbon dioxide capture using water vapor adsorption8 Oct 2026US 2026/0306991 A1GE Vernova Infrastructure Technology LLC
- Systems for optimizing carbon dioxide capture8 Oct 2026US 2026/0306993 A1GE Vernova Infrastructure Technology LLC
- Processes for sorbent regeneration8 Oct 2026US 2026/0306995 A1Shell USA, Inc.
- Constant gas-phase organic compound concentration generation apparatus and pretreatment method thereof1 Oct 2026US 2026/0295499 A1Shenzhen University
Most cited
By later US patents
- Regenerable solid amine sorbent150US 5,876,488 AUnited Technologies Corporation · 1999
- Multistage system for separating gas by adsorption121US 6,514,318 B2QuestAir Technologies Inc. · 2003
- Microchannel laminated mass exchanger and method of making115US 6,129,973 ABattelle Memorial Institute · 2000
- Portable gas fractionalization system107US 7,066,985 B2Inogen, Inc. · 2006
- PSA with adsorbents sensitive to contaminants84US 7,160,367 B2QuestAir Technologies Inc. · 2007