F04D 15/0011
By-pass valves
Official title: {by-pass valves}
F04D15/0011 (By-pass valves) appears on 71 US grants and 58 published applications in this corpus.
Search patents in F04D- Granted patents
- 71
- Published applications
- 58
- Assignees
- 63
- Inventors
- 146
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 2 | 7 |
| 2017 | 1 | 5 |
| 2018 | 4 | 6 |
| 2019 | 7 | 1 |
| 2020 | 2 | 2 |
| 2021 | 3 | 5 |
| 2022 | 3 | 8 |
| 2023 | 9 | 5 |
| 2024 | 12 | 4 |
| 2025 | 4 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of starting and stopping pump apparatuses coupled in series7 Apr 2026US 12,595,799 B2Ebara Corporation
- Methods, systems, and apparatus to control a fluid provided to components in a fluid pump of a closed loop system24 Feb 2026US 12,560,178 B2General Electric Company
- Well pump housing and transportation system5 Aug 2025US 12,378,753 B1
- Pressure regulator for engine lubrication system10 Jun 2025US 12,326,103 B2Cummins Inc.
- Integrated adjustable multi-pump mechanical circulatory support device4 Mar 2025US 12,239,831 B2Drexel University
- Methods, systems, and apparatus to control a fluid provided to components in a fluid pump of a closed loop system2 Jul 2026US 2026/0185540 A1General Electric Company
- Well pump housing and transportation system27 Nov 2025US 2025/0361702 A1
- Method of starting and stopping pump apparatuses coupled in series6 Nov 2025US 2025/0341215 A1Ebara Corporation
- Action-oriented monitoring system for rotating equipment13 Mar 2025US 2025/0084841 A1Saudi Arabian Oil Company
- Primer pump assembly and a method of cooling a marine vessel17 Oct 2024US 2024/0344519 A1AB Volvo Penta
Most cited
By later US patents
- Valve network and method for controlling pressure within a supercritical working fluid circuit in a heat engine system with a turbopump74US 10,267,184 B2Echogen Power Systems, LLC · 2019
- Methods and systems for operating a pump at an efficiency point37US 11,559,774 B2Marathon Petroleum Company LP · 2023
- Methods and systems for operating a pump at an efficiency point37US 11,565,221 B2Marathon Petroleum Company LP · 2023
- Multiple recirculating toilet27US 3,994,628 AMonogram Industries, Inc. · 1976
- Control apparatus for lubrication pump22US 5,332,064 A1994