F04D 29/706
Humidity separation
Official title: {Humidity separation}
F04D29/706 (Humidity separation) appears on 116 US grants and 145 published applications in this corpus.
Search patents in F04D- Granted patents
- 116
- Published applications
- 145
- Assignees
- 83
- Inventors
- 332
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 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 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 3 | 4 |
| 2014 | 2 | 3 |
| 2015 | 0 | 12 |
| 2016 | 4 | 7 |
| 2017 | 5 | 10 |
| 2018 | 9 | 13 |
| 2019 | 13 | 13 |
| 2020 | 10 | 7 |
| 2021 | 10 | 7 |
| 2022 | 9 | 17 |
| 2023 | 11 | 10 |
| 2024 | 12 | 13 |
| 2025 | 9 | 8 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fan assembly17 Feb 2026US 12,553,642 B2Dyson Technology Limited
- Systems and methods for water removal in compressors3 Feb 2026US 12,539,491 B2Doosan Bobcat North America, Inc.
- Centrifugal fan arrangement27 Jan 2026US 12,535,082 B2Zehnder Group International AG
- Integrated bearing systems for dynamically supporting shafts in pump systems4 Nov 2025US 12,460,647 B2General Electric Company
- Vacuum pump and control apparatus of vacuum pump with water leakage prevention between the pump main body and control apparatus21 Oct 2025US 12,448,976 B2Edwards Japan Limited
- Multi-stage compressor system with anti-surge arrangement, and method23 Jul 2026US 2026/0210371 A1Nuovo Pignone Tecnologie Srl
- Compression system, method for starting up compression system, and method for stopping compression system16 Jul 2026US 2026/0201895 A1Mitsubishi Heavy Industries, Ltd.
- Blower with waterproof function19 Mar 2026US 2026/0078770 A1
- Media gap motor, fuel cell system and use23 Oct 2025US 2025/0327458 A1G&L Innotec GmbH
- Fan device of waterproof electronic device28 Aug 2025US 2025/0271906 A1Getac Technology Corporation
Most cited
By later US patents
- Engine cooling fan motor with reduced water entry protection40US 7,374,408 B2Valeo Electrical Systems, Inc. · 2008
- Liquid extraction and separation method for treating fluids utilizing flow swirl39US 6,592,654 B2Cryogenic Group, Inc. · 2003
- Bearing air seal for vacuum cleaner motor27US 4,527,960 AGeneral Signal Corporation · 1985
- Wet pick-up vacuum unit motor bearing air seal24US 4,088,424 AAmetek, Inc. · 1978
- Fluid separator for dental aspiration apparatus21US 6,022,216 ACattani S.p.A. · 2000