F04B 53/1017
Semi-spherical ball valves
Official title: {Semi-spherical ball valves}
F04B53/1017 (Semi-spherical ball valves) appears on 12 US grants and 11 published applications in this corpus.
Search patents in F04B- Granted patents
- 12
- Published applications
- 11
- Assignees
- 8
- Inventors
- 30
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Piston pump having plastic material inlet valve insert part for a high pressure cleaning device3 Mar 2026US 12,565,888 B2Alfred Kärcher GmbH & Co. KG
- High-pressure fuel pump2 Apr 2019US 10,247,181 B2Hitachi, Ltd.
- Valve of a piston pump with a closing body29 May 2018US 9,982,671 B2Robert Bosch GmbH
- High-pressure fuel pump22 Mar 2016US 9,291,162 B2Hitachi, Ltd.
- Discharge valve and damper for a piston pump22 Sep 2015US 9,140,257 B2Robert Bosch GmbH
- Piston pump for a high pressure cleaning device28 Sep 2023US 2023/0304485 A1Alfred Kärcher GmbH & Co. KG
- Self cleaning pneumatic fluid pump having poppet valve with propeller-like cleaning structure16 Sep 2021US 2021/0285439 A1Q.E.D. Environmental Systems, Inc.
- Pump nozzle13 Jul 2017US 2017/0198691 A1APC Packaging, LLC.
- High-Pressure Fuel Pump9 Jun 2016US 2016/0160825 A1Hitachi, Ltd.
- Valve, in particular an outlet valve of a hydraulic piston pump30 Jan 2014US 2014/0030127 A1Robert Bosch GmbH
Most cited
By later US patents
- Integrated fluid end57US 8,915,722 B12014
- Pump for pumping both low viscosity and high viscosity fluids11US 4,014,629 AGeneral Electric Company · 1977
- Cylinder piston arrangement for a fluid pump or a fluid motor7US 8,794,938 B22014
- Control valve6US 4,212,316 AACF Industries, Incorporated · 1980
- Crashworthy fuel pump improvement4US 4,284,391 AACF Industries, Incorporated · 1981