F04B 37/18
For specific elastic fluids
Official title: for specific elastic fluids
F04B37/18 (For specific elastic fluids) appears on 64 US grants and 111 published applications in this corpus.
Search patents in F04B- Granted patents
- 64
- Published applications
- 111
- Assignees
- 87
- Inventors
- 268
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 5 |
| 2008 | 1 | 4 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 7 |
| 2017 | 1 | 10 |
| 2018 | 2 | 9 |
| 2019 | 6 | 10 |
| 2020 | 2 | 9 |
| 2021 | 8 | 7 |
| 2022 | 4 | 4 |
| 2023 | 3 | 7 |
| 2024 | 7 | 7 |
| 2025 | 6 | 10 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and system for efficient hydrogen compression11 Aug 2026US 12,704,116 B2Nuovo Pignone Tecnologie Srl
- Jumper lines with pumps21 Jul 2026US 12,687,162 B2Tpe Midstream LLC
- Portable air compressor2 Jun 2026US 12,644,444 B2The Noco Company
- Hydrogen compressor28 Apr 2026US 12,613,013 B2Siemens Energy Global GmbH & Co. KG
- Compressor vaporizer with discharge pipe in crankcase27 Jan 2026US 12,535,067 B2Advanced Flow Solutions Inc.
- Portable Air Compressor17 Sep 2026US 2026/0275976 A1The Noco Company
- Fuel compressor20 Aug 2026US 2026/0243241 A1Phinia Delphi Luxembourg Sarl
- Pressure Device6 Aug 2026US 2026/0226893 A1Great Southern Motor Company Pty. Ltd.
- Near-isothermal gas compressor and/or /expander system30 Jul 2026US 2026/0218693 A1University of Virginia Patent Foundation
- Compressor unit30 Jul 2026US 2026/0218700 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Most cited
By later US patents
- Compression refrigeration machine97US 5,671,607 ASEP Gesellschaft fur technische Studien Entwicklung Planung mbH · 1997
- Compact vacuum pump57US 7,918,654 B22011
- Precision high pressure control assembly54US 5,888,050 ASupercritical Fluid Technologies, Inc. · 1999
- Precision high pressure control assembly53US 5,797,719 ASupercritical Fluid Technologies, Inc. · 1998
- Oilless compressor with a pressurizable crankcase and motor containment vessel24US 5,957,667 ABallard Generation Systems Inc. · 1999