F04B 9/10
The fluid being liquid
Official title: the fluid being liquid
F04B9/10 (The fluid being liquid) appears on 811 US grants and 639 published applications in this corpus.
Search patents in F04B- Granted patents
- 811
- Published applications
- 639
- Assignees
- 466
- Inventors
- 1,314
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 12 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 9 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 15 | 0 |
| 1984 | 18 | 0 |
| 1985 | 15 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 17 | 0 |
| 1989 | 16 | 0 |
| 1990 | 8 | 0 |
| 1991 | 13 | 0 |
| 1992 | 16 | 0 |
| 1993 | 21 | 0 |
| 1994 | 7 | 0 |
| 1995 | 13 | 0 |
| 1996 | 17 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 15 | 0 |
| 2001 | 15 | 3 |
| 2002 | 16 | 10 |
| 2003 | 11 | 12 |
| 2004 | 8 | 12 |
| 2005 | 5 | 22 |
| 2006 | 5 | 13 |
| 2007 | 13 | 12 |
| 2008 | 8 | 21 |
| 2009 | 8 | 20 |
| 2010 | 6 | 16 |
| 2011 | 18 | 13 |
| 2012 | 7 | 11 |
| 2013 | 16 | 26 |
| 2014 | 5 | 27 |
| 2015 | 21 | 46 |
| 2016 | 17 | 38 |
| 2017 | 29 | 49 |
| 2018 | 37 | 46 |
| 2019 | 34 | 36 |
| 2020 | 47 | 33 |
| 2021 | 30 | 34 |
| 2022 | 25 | 30 |
| 2023 | 30 | 29 |
| 2024 | 29 | 41 |
| 2025 | 27 | 28 |
| 2026 | 24 | 11 |
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.
- 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
- Hydraulic pump providing enhanced physical mobility7 Jul 2026US 12,673,334 B2
- Aspiration vacuum source13 Aug 2026US 2026/0232889 A1Neuravi Limited
- Cryogenic pump30 Jul 2026US 2026/0218692 A1Chart Energy & Chemicals, Inc.
- Proportional volumetric dosing device30 Jul 2026US 2026/0219086 A1Mixtron S.R.L.
- Asymmetric ram piston for intensifier2 Jul 2026US 2026/0185511 A1KMT Waterjet Systems Inc.
- Double acting pump25 Jun 2026US 2026/0177042 A1Mhwirth AS
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