F04B 53/125
Reciprocating valves
Official title: {Reciprocating valves}
F04B53/125 (Reciprocating valves) appears on 322 US grants and 214 published applications in this corpus.
Search patents in F04B- Granted patents
- 322
- Published applications
- 214
- Assignees
- 165
- Inventors
- 550
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 13 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 2 |
| 2002 | 10 | 9 |
| 2003 | 8 | 4 |
| 2004 | 7 | 5 |
| 2005 | 1 | 4 |
| 2006 | 5 | 5 |
| 2007 | 2 | 4 |
| 2008 | 1 | 6 |
| 2009 | 2 | 2 |
| 2010 | 1 | 11 |
| 2011 | 1 | 3 |
| 2012 | 3 | 1 |
| 2013 | 5 | 7 |
| 2014 | 4 | 7 |
| 2015 | 1 | 7 |
| 2016 | 7 | 7 |
| 2017 | 4 | 11 |
| 2018 | 8 | 25 |
| 2019 | 13 | 17 |
| 2020 | 24 | 18 |
| 2021 | 16 | 14 |
| 2022 | 16 | 11 |
| 2023 | 8 | 11 |
| 2024 | 9 | 11 |
| 2025 | 12 | 6 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dart and clutch assembly15 Sep 2026US 12,735,962 B2Epic Lift Systems
- Through-hardened valve seat for hydraulic fracturing1 Sep 2026US 12,723,662 B2Apex Industrial LLC
- System and method for valve assembly28 Jul 2026US 12,692,945 B2Vulcan Industrial Holdings, LLC
- Downhole sucker rod pump23 Jun 2026US 12,662,999 B2Oilify New-tech Solutions Inc.
- Dart and clutch assembly28 Apr 2026US 12,612,845 B2Epic Lift Systems
- Through-Hardened Valve Seat for Hydraulic Fracturing1 Oct 2026US 2026/0298349 A1Apex Industrial LLC
- Oil overflow control for diaphragm compressor3 Sep 2026US 2026/0258800 A1
- Low-pressure pump for hydrogen pumping system25 Jun 2026US 2026/0177052 A1FirstElement Fuel, Inc.
- Fracturing pump arrangement using a plunger with an internal fluid passage21 May 2026US 2026/0139667 A1Kerr Machine Co.
- Improved dart and clutch assembly26 Feb 2026US 2026/0055685 A1Epic Lift Systems
Most cited
By later US patents
- Linear pump231US 5,924,975 AInternational Business Machines Corporation · 1999
- Device for producing high pressure in a fluid in miniature104US 5,964,416 ABoehringer Ingelheim GmbH · 1999
- Tubing pump system for pumping well fluids94US 5,765,639 AMuth Pump LLC · 1998
- Pump system and method for pumping well fluids89US 5,934,372 AMuth Pump LLC · 1999
- Pump systems and methods88US 6,543,543 B2Muth Pump LLC · 2003