F04C 13/005
Removing contaminants, deposits or scale from the pump
Official title: {Removing contaminants, deposits or scale from the pump; Cleaning}
F04C13/005 (Removing contaminants, deposits or scale from the pump) appears on 101 US grants and 104 published applications in this corpus.
Search patents in F04C- Granted patents
- 101
- Published applications
- 104
- Assignees
- 95
- Inventors
- 272
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 4 | 5 |
| 2005 | 1 | 3 |
| 2006 | 2 | 3 |
| 2007 | 4 | 3 |
| 2008 | 0 | 7 |
| 2009 | 3 | 2 |
| 2010 | 0 | 11 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 4 | 5 |
| 2014 | 5 | 1 |
| 2015 | 2 | 10 |
| 2016 | 4 | 6 |
| 2017 | 3 | 3 |
| 2018 | 3 | 8 |
| 2019 | 5 | 9 |
| 2020 | 7 | 6 |
| 2021 | 8 | 4 |
| 2022 | 5 | 5 |
| 2023 | 2 | 1 |
| 2024 | 4 | 2 |
| 2025 | 3 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- In-situ serviceable gear pump11 Aug 2026US 12,704,125 B1Ace Machine Design Inc.
- Control device for hydraulic control valve28 Apr 2026US 12,612,912 B2Hitachi Astemo, Ltd.
- Rotary pump with rotor bearing cap31 Mar 2026US 12,590,582 B2Unibloc Hygienic Technologies US, LLC
- Control system for a smart pump located within a lubrication/cooling assembly16 Dec 2025US 12,497,963 B2GHSP, Inc.
- Pump for conveying a fluid4 Nov 2025US 12,460,634 B2Vogelsang GmbH & Co. KG
- Control system for a smart pump located within a lubrication/cooling assembly12 Mar 2026US 2026/0071622 A1GHSP, Inc.
- Rotary Pump with Rotor Bearing Cap21 Aug 2025US 2025/0264100 A1Unibloc Hygienic Technologies US, LLC
- Control Device for Hydraulic Control Valve27 Mar 2025US 2025/0101979 A1Hitachi Astemo, Ltd.
- Liquid hydrocarbon fluid transfer system23 Jan 2025US 2025/0027495 A1
- Control system for a smart pump located within a lubrication/cooling assembly11 Apr 2024US 2024/0120809 A1GHSP, Inc.
Most cited
By later US patents
- Pump mount using sanitary flange clamp72US 6,764,284 B2Parker-Hannifin Corporation · 2004
- Gear pump for use in an electrically-operated sealed compressor29US 6,039,551 AMatsushita Electric Industrial Co., Ltd. · 2000
- Gear pump for use in an electrically-operated sealed compressor22US 6,116,877 AMatsushita Electric Industrial Co., Ltd. · 2000
- Flushable rotary gear pump20US 4,400,147 ABayer Aktiengesellschaft · 1983
- Pump integrated with two independently driven prime movers15US 9,228,586 B2Project Phoenix, LLC · 2016