F04B 9/08
The means being fluid
Official title: the means being fluid
F04B9/08 (The means being fluid) appears on 1,263 US grants and 964 published applications in this corpus.
Search patents in F04B- Granted patents
- 1,263
- Published applications
- 964
- Assignees
- 712
- Inventors
- 2,046
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 35 | 0 |
| 1977 | 25 | 0 |
| 1978 | 27 | 0 |
| 1979 | 13 | 0 |
| 1980 | 15 | 0 |
| 1981 | 11 | 0 |
| 1982 | 17 | 0 |
| 1983 | 21 | 0 |
| 1984 | 24 | 0 |
| 1985 | 22 | 0 |
| 1986 | 9 | 0 |
| 1987 | 19 | 0 |
| 1988 | 24 | 0 |
| 1989 | 18 | 0 |
| 1990 | 13 | 0 |
| 1991 | 24 | 0 |
| 1992 | 27 | 0 |
| 1993 | 26 | 0 |
| 1994 | 17 | 0 |
| 1995 | 23 | 0 |
| 1996 | 32 | 0 |
| 1997 | 17 | 0 |
| 1998 | 15 | 0 |
| 1999 | 20 | 0 |
| 2000 | 23 | 0 |
| 2001 | 23 | 4 |
| 2002 | 23 | 17 |
| 2003 | 20 | 23 |
| 2004 | 18 | 25 |
| 2005 | 11 | 30 |
| 2006 | 7 | 21 |
| 2007 | 19 | 18 |
| 2008 | 13 | 34 |
| 2009 | 10 | 25 |
| 2010 | 9 | 23 |
| 2011 | 23 | 26 |
| 2012 | 14 | 20 |
| 2013 | 25 | 39 |
| 2014 | 14 | 44 |
| 2015 | 27 | 64 |
| 2016 | 32 | 64 |
| 2017 | 43 | 69 |
| 2018 | 56 | 62 |
| 2019 | 52 | 57 |
| 2020 | 65 | 49 |
| 2021 | 45 | 55 |
| 2022 | 39 | 44 |
| 2023 | 49 | 40 |
| 2024 | 42 | 52 |
| 2025 | 36 | 39 |
| 2026 | 31 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid pump assembly6 Oct 2026US 12,753,748 B2
- Multi-phase fluid pump system with driving fluid and pump fluid cylinders and buffer chambers22 Sep 2026US 12,742,449 B2I-Jack Technologies Incorporated
- Systems and methods for reducing wear in a reciprocating piston pump11 Aug 2026US 12,704,135 B2Spotton Corp.
- Pump arrangement, configured to be used with a double breast pump device28 Jul 2026US 12,691,205 B2Koninklijke Philips N. V.
- Method for operating a construction-material and/or viscous-material pump for conveying construction material and/or viscous material, and construction-material and/or viscous-material pump for conveying construction material and/or viscous material28 Jul 2026US 12,692,860 B2Putzmeister Engineering 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.
- Cryogenic pump30 Jul 2026US 2026/0218692 A1Chart Energy & Chemicals, Inc.
- Proportional volumetric dosing device30 Jul 2026US 2026/0219086 A1Mixtron S.R.L.
Most cited
By later US patents
- Cold weather package for oil field hydraulics309US 9,611,728 B2U.S. Well Services, LLC · 2017
- Quadraplex fluid pump268US 4,470,771 ATowler Hydraulics, Inc. · 1984
- Pump assembly228US 3,966,358 AMedac Gesellschaft FüR Klinische SpezialpräParate Mbh · 1976
- Pumping apparatus and pump control apparatus and method203US 4,990,058 AHaliburton Company · 1991
- Cassette system integrated apparatus195US 8,499,780 B2DEKA Products Limited Partnership · 2013