F04B 9/12
The fluid being elastic
Official title: the fluid being elastic, e.g. steam or air
F04B9/12 (The fluid being elastic) appears on 474 US grants and 347 published applications in this corpus.
Search patents in F04B- Granted patents
- 474
- Published applications
- 347
- Assignees
- 286
- Inventors
- 825
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 12 | 0 |
| 1978 | 15 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 11 | 0 |
| 1995 | 10 | 0 |
| 1996 | 15 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 0 |
| 2002 | 11 | 8 |
| 2003 | 9 | 13 |
| 2004 | 10 | 13 |
| 2005 | 6 | 8 |
| 2006 | 3 | 8 |
| 2007 | 6 | 6 |
| 2008 | 5 | 15 |
| 2009 | 2 | 4 |
| 2010 | 3 | 7 |
| 2011 | 5 | 13 |
| 2012 | 7 | 7 |
| 2013 | 7 | 11 |
| 2014 | 9 | 18 |
| 2015 | 3 | 21 |
| 2016 | 15 | 27 |
| 2017 | 20 | 19 |
| 2018 | 19 | 18 |
| 2019 | 18 | 26 |
| 2020 | 21 | 15 |
| 2021 | 17 | 24 |
| 2022 | 16 | 14 |
| 2023 | 18 | 10 |
| 2024 | 15 | 19 |
| 2025 | 9 | 12 |
| 2026 | 10 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump arrangement, configured to be used with a double breast pump device28 Jul 2026US 12,691,205 B2Koninklijke Philips N. V.
- Fluid sample pump system9 Jun 2026US 12,650,118 B2Mustang Sampling, LLC
- Cyclic aspiration system with a non-powered internal structural impediment engaging with a clot assisting in capture26 May 2026US 12,636,421 B2Neuravi Limited
- Equipment for treating substrate including a chemical solution supply apparatus with pump member and extraction nozzle26 May 2026US 12,636,597 B2Semes Co., Ltd.
- Pressure container for driving a medical device5 May 2026US 12,616,792 B2Sanofi-Aventis Deutschland GmbH
- Expandable device for a body cavity27 Aug 2026US 2026/0249060 A1IP Holding Company
- Aspiration vacuum source13 Aug 2026US 2026/0232889 A1Neuravi Limited
- Automated volume distribution and dosing system30 Jul 2026US 2026/0218691 A1Fenwal, Inc.
- Pneumatic Pump Cycle Counter25 Jun 2026US 2026/0176959 A1Shady Grove Road Investments, LLC
- Compression system18 Jun 2026US 2026/0168483 A1Universite Du Luxembourg
Most cited
By later US patents
- Vacuum driven fluid pump for an aspiration/irrigation instrument119US 5,542,918 AZimmer, Inc. · 1996
- Distribution unit89US 10,900,475 B2Halliburton Energy Services.Inc. · 2021
- Leak detection assembly84US 5,635,630 AChrysler Corporation · 1997
- Reciprocating infusion pump and directional adapter set for use therewith80US 4,065,230 AHart Associates, Inc. · 1977
- Bellows-type pump and metering system73US 4,483,665 ATritec Industries, Inc. · 1984