F04B 53/108
Valves characterised by the material
Official title: {Valves characterised by the material}
F04B53/108 (Valves characterised by the material) appears on 144 US grants and 150 published applications in this corpus.
Search patents in F04B- Granted patents
- 144
- Published applications
- 150
- Assignees
- 110
- Inventors
- 329
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 9 |
| 2012 | 3 | 12 |
| 2013 | 3 | 9 |
| 2014 | 8 | 6 |
| 2015 | 7 | 7 |
| 2016 | 6 | 11 |
| 2017 | 7 | 15 |
| 2018 | 6 | 10 |
| 2019 | 8 | 9 |
| 2020 | 9 | 8 |
| 2021 | 4 | 11 |
| 2022 | 17 | 9 |
| 2023 | 7 | 10 |
| 2024 | 9 | 7 |
| 2025 | 6 | 2 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cathodic protection of a fluid end21 Jul 2026US 12,687,163 B1Caterpillar Inc.
- Diaphragm pump14 Apr 2026US 12,601,340 B2Cytiva Sweden AB
- Valve component24 Mar 2026US 12,584,479 B2Gd Energy Products, LLC
- Thermo-magnetic motor10 Mar 2026US 12,571,357 B1
- Control plate of a hydraulic machine and hydraulic machine3 Feb 2026US 12,540,604 B2Danfoss A/S
- Electronic solenoid control for a self-priming electric pump6 Aug 2026US 2026/0226890 A1Fluid Handling LLC
- Diaphragm Pump23 Jul 2026US 2026/0210347 A1Cytiva Sweden AB
- Extending Life of Frac, Stimulation (acid), Gravel Packing, and Mud Pump Valves through Design and Materials: Phase & Chemistry Controlled Alloy Body with Meta Material Seals16 Jul 2026US 2026/0201786 A1
- Lubricant dosing device for gaseous fuel engine5 Mar 2026US 2026/0063094 A1Phinia Delphi Luxembourg Sarl
- Economizer injection in a reciprocating compressor13 Nov 2025US 2025/0347446 A1Carrier Corporation
Most cited
By later US patents
- Reciprocating pump for a medication administering device167US 4,808,089 ASiemens Aktiengesellschaft · 1989
- Method and apparatus for introducing fluid material into an eye109US 5,368,582 AThe Schepens Eye Research Institute, Inc. · 1994
- Fluid end for high-pressure fluid pumps100US 5,253,987 A1993
- Pump and valve apparatus85US 4,948,349 AKelbin Co., Ltd. · 1990
- Frac pump valve assembly62US 10,711,778 B2ST9 Gas and Oil, LLC · 2020