F04B 37/20
For wet gases
Official title: for wet gases, e.g. wet air
F04B37/20 (For wet gases) appears on 25 US grants and 32 published applications in this corpus.
Search patents in F04B- Granted patents
- 25
- Published applications
- 32
- Assignees
- 24
- Inventors
- 66
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 5 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 3 |
| 2019 | 2 | 3 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor vaporizer with discharge pipe in crankcase27 Jan 2026US 12,535,067 B2Advanced Flow Solutions Inc.
- Perforated structure15 Jul 2025US 12,361,842 B2Philip Morris Products S. A.
- Methods for evaluating vapor pump performance15 Apr 2025US 12,274,973 B2W. L. Gore & Associates, Inc.
- Compression device, installation, filling station and method using such a device31 Dec 2024US 12,180,947 B2L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes
- Compression apparatus and filling station comprising such an apparatus23 Apr 2024US 11,965,624 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Piston intended for a fluid machine and provided with a system for pressing seals, fluid machine comprising such a piston2 Apr 2026US 2026/0092603 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Pump assembly12 Jun 2025US 2025/0188923 A1Becton, Dickinson and Company
- Compressor vaporizer with discharge pipe in crankcase5 Jun 2025US 2025/0180010 A1Advanced Flow Solutions Inc.
- Method for operating a vacuum pump and vacuum pump12 Sep 2024US 2024/0302852 A1
- Compression device, installation, filling station and method using such a device2 Mar 2023US 2023/0067385 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Compact vacuum pump57US 7,918,654 B22011
- Compact vacuum pump15US 7,284,965 B22007
- Means for removing residual water from a surface6US 4,351,723 A1982
- Gas ballast system for a multi-stage positive displacement pump5US 6,071,085 APfeiffer Vacuum GmbH · 2000
- Dry compressing vacuum pump having a gas ballast device5US 6,776,588 B1Leybold Vakuum GmbH · 2004