F24F 3/1411
By absorbing or adsorbing water
Official title: {by absorbing or adsorbing water, e.g. using an hygroscopic desiccant}
F24F3/1411 (By absorbing or adsorbing water) appears on 1,096 US grants and 963 published applications in this corpus.
Search patents in F24F- Granted patents
- 1,096
- Published applications
- 963
- Assignees
- 500
- Inventors
- 1,737
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 10 | 0 |
| 1978 | 5 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 17 | 0 |
| 1988 | 10 | 0 |
| 1989 | 20 | 0 |
| 1990 | 24 | 0 |
| 1991 | 25 | 0 |
| 1992 | 14 | 0 |
| 1993 | 20 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 27 | 0 |
| 1997 | 19 | 0 |
| 1998 | 29 | 0 |
| 1999 | 22 | 0 |
| 2000 | 26 | 0 |
| 2001 | 30 | 8 |
| 2002 | 26 | 15 |
| 2003 | 19 | 23 |
| 2004 | 17 | 25 |
| 2005 | 20 | 27 |
| 2006 | 18 | 40 |
| 2007 | 22 | 35 |
| 2008 | 19 | 22 |
| 2009 | 12 | 31 |
| 2010 | 18 | 46 |
| 2011 | 24 | 31 |
| 2012 | 11 | 31 |
| 2013 | 15 | 44 |
| 2014 | 31 | 41 |
| 2015 | 34 | 33 |
| 2016 | 39 | 49 |
| 2017 | 37 | 51 |
| 2018 | 33 | 55 |
| 2019 | 51 | 52 |
| 2020 | 49 | 50 |
| 2021 | 43 | 43 |
| 2022 | 32 | 55 |
| 2023 | 45 | 39 |
| 2024 | 26 | 48 |
| 2025 | 33 | 43 |
| 2026 | 23 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dehumidification unit and desiccant drum therein29 Sep 2026US 12,747,872 B2Trane International Inc.
- Multi-stage liquid desiccant dehumidification systems and methods25 Aug 2026US 12,716,597 B2Copeland Corporation
- Liquid desiccant dedicated vapor compression system and a method of operation thereof11 Aug 2026US 12,704,274 B2Carrier Corporation
- Conditioning system including vapor compression system and humidity control system4 Aug 2026US 12,698,910 B2Copeland Corporation
- Staged regenerated liquid desiccant dehumidification systems28 Jul 2026US 12,693,037 B2Mojave Energy Systems, Inc.
- Modular solid desiccant system for dedicated outdoor air system units10 Sep 2026US 2026/0266484 A1Carrier Corporation
- Gas sorption rotor for air treatment and method for manufacturing such gas sorption rotor27 Aug 2026US 2026/0249232 A1Munters Europe Aktiebolag
- Compressor driven air quality systems, devices, and methods27 Aug 2026US 2026/0251320 A1Atlas Copco Airpower, Naamloze Vennootschap
- Humidity controlling device and humidity controlling system27 Aug 2026US 2026/0251321 A1NGK Insulators, Ltd.
- Carbon dioxide capture system using a liquid desiccant, and methods thereof6 Aug 2026US 2026/0225026 A1
Most cited
By later US patents
- Desiccant assisted air conditioner154US 4,887,438 A1989
- Heat exchanger, heat pump, dehumidifier, and dehumidifying method148US 6,442,951 B1Ebara Corporation · 2002
- Air conditioning system with regeneratable desiccant bed139US 4,180,985 ANorthrup, Incorporated · 1980
- Method and apparatus for recovering water from air135US 6,156,102 AFantom Technologies Inc. · 2000
- System and method for controlling temperature and humidity132US 6,199,388 B1Semco LLC · 2001