F24F 2003/1435
Comprising semi-permeable membrane
Official title: {comprising semi-permeable membrane}
F24F2003/1435 (Comprising semi-permeable membrane) appears on 249 US grants and 316 published applications in this corpus.
Search patents in F24F- Granted patents
- 249
- Published applications
- 316
- Assignees
- 150
- Inventors
- 521
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 2 |
| 2002 | 2 | 7 |
| 2003 | 6 | 8 |
| 2004 | 8 | 7 |
| 2005 | 4 | 10 |
| 2006 | 2 | 8 |
| 2007 | 6 | 2 |
| 2008 | 4 | 10 |
| 2009 | 3 | 5 |
| 2010 | 4 | 10 |
| 2011 | 3 | 5 |
| 2012 | 3 | 24 |
| 2013 | 8 | 10 |
| 2014 | 9 | 25 |
| 2015 | 12 | 15 |
| 2016 | 20 | 23 |
| 2017 | 13 | 24 |
| 2018 | 9 | 10 |
| 2019 | 15 | 12 |
| 2020 | 13 | 16 |
| 2021 | 15 | 14 |
| 2022 | 10 | 19 |
| 2023 | 20 | 12 |
| 2024 | 6 | 14 |
| 2025 | 17 | 16 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-stage liquid desiccant dehumidification systems and methods25 Aug 2026US 12,716,597 B2Copeland Corporation
- Liquid desiccant air conditioner modules having interlocking panels for controlling airflow16 Jun 2026US 12,656,019 B2Copeland Corporation
- Humidifier2 Jun 2026US 12,646,728 B2Aisin Corporation
- Membrane-based desorption cooling method for passive thermal management14 Apr 2026US 12,599,866 B2City University of Hong Kong
- Desiccant enhanced evaporative cooling systems and methods10 Mar 2026US 12,571,549 B2Nortek Air Solutions Canada, Inc.
- Vacuum-enhanced membrane dehumidification and humidification10 Sep 2026US 2026/0266485 A1Dais Corporation
- Evaporative coolers with water management features13 Aug 2026US 2026/0235306 A13M Innovative Properties Company
- Water vapor permeable membrane module2 Jul 2026US 2026/0183720 A1AGC Engineering Co., Ltd.
- Systems and methods for modulating temperature and humidity of an enclosed space25 Jun 2026US 2026/0177261 A1Nortek Air Solutions Canada, Inc.
- Heat exchanger, ventilator, and method for manufacturing heat exchanger7 May 2026US 2026/0126206 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Humidifier module for use in a gas humidification assembly398US 4,921,642 APuritan-Bennett Corporation · 1990
- Evaporative cooling membrane device106US 5,946,931 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1999
- Membrane desiccation heat pump103US 6,739,142 B22004
- Membrane dehumidification97US 4,900,448 AHoneywell Inc. · 1990
- Crosslinked polymer electrolyte membranes for heat and moisture exchange devices86US 6,841,601 B2Dais Analytic Corporation · 2005