F04B 53/04
Draining
F04B53/04 (Draining) appears on 111 US grants and 129 published applications in this corpus.
Search patents in F04B- Granted patents
- 111
- Published applications
- 129
- Assignees
- 114
- Inventors
- 301
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 4 |
| 2004 | 3 | 6 |
| 2005 | 1 | 2 |
| 2006 | 3 | 6 |
| 2007 | 0 | 0 |
| 2008 | 2 | 3 |
| 2009 | 0 | 1 |
| 2010 | 4 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 3 | 0 |
| 2014 | 0 | 3 |
| 2015 | 3 | 8 |
| 2016 | 0 | 10 |
| 2017 | 4 | 5 |
| 2018 | 8 | 11 |
| 2019 | 7 | 4 |
| 2020 | 9 | 9 |
| 2021 | 7 | 9 |
| 2022 | 5 | 5 |
| 2023 | 6 | 4 |
| 2024 | 3 | 3 |
| 2025 | 7 | 15 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid retention apparatus for fluid end of positive displacement pump and related method25 Aug 2026US 12,716,412 B2
- Safety device for fluid ends11 Aug 2026US 12,704,426 B2Forum US, Inc.
- Flow distributor assembly, valve box and plunger pump16 Jun 2026US 12,655,841 B2Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Pump sealing member groove with drain for a vehicle12 May 2026US 12,624,692 B2GM Global Technology Operations LLC
- Gas cooler21 Apr 2026US 12,607,178 B2Kobelco Compressors Corporation
- System including recovery pump and vacuum pump3 Sep 2026US 2026/0258801 A1Milwaukee Electric Tool Corporation
- Near-isothermal gas compressor and/or /expander system30 Jul 2026US 2026/0218693 A1University of Virginia Patent Foundation
- Pump device comprising a screw plug11 Jun 2026US 2026/0160335 A1Frideco AG
- Pressure source unit7 May 2026US 2026/0126031 A1Kawasaki Jukogyo Kabushiki Kaisha
- Flow Distributor Assembly, Valve Box and Plunger Pump5 Mar 2026US 2026/0063122 A1Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
Most cited
By later US patents
- Pump using shape memory alloys119US 5,622,482 ADaewood Electronics Co., Ltd. · 1997
- High pressure pump34US 4,140,442 APerfect Pump Co., Inc. · 1979
- Cryogenic fluid pump33US 10,626,856 B2Caterpillar Inc. · 2020
- Piston pump for fluent materials32US 5,415,531 ABinks Manufacturing Company · 1995
- Well tubing drain26US 3,981,360 ACook Testing Co. · 1976