F04B 2201/0601
Opening times
F04B2201/0601 (Opening times) appears on 64 US grants and 51 published applications in this corpus.
Search patents in F04B- Granted patents
- 64
- Published applications
- 51
- Assignees
- 45
- Inventors
- 94
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 5 | 4 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 6 |
| 2017 | 1 | 1 |
| 2018 | 1 | 8 |
| 2019 | 8 | 7 |
| 2020 | 5 | 3 |
| 2021 | 7 | 5 |
| 2022 | 4 | 2 |
| 2023 | 5 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Controlling suction valves of a fluid pump18 Aug 2026US 12,710,035 B2SPM Oil & Gas Inc.
- Loading a fluidic element11 Aug 2026US 12,704,121 B2Dionex Softron GmbH
- Method for autonomous control of oil and gas well down-hole pump surface unit and reduction of gas interference20 Jan 2026US 12,529,373 B1
- Medical fluid pumping system having backflow prevention19 Aug 2025US 12,392,335 B2Baxter Healthcare S. A.
- Method for operating a vacuum pump system8 Aug 2023US 11,719,231 B2Leybold Aktiengesellschaft
- Controlling suction valves of a fluid pump28 May 2026US 2026/0146602 A1SPM Oil & Gas Inc.
- Controlling suction valves of a fluid pump20 Nov 2025US 2025/0354546 A1SPM Oil & Gas Inc.
- Compressor with reduced start-up torque20 Mar 2025US 2025/0092868 A1Cavendish Hydrogen A/S
- Loading a fluidic element25 May 2023US 2023/0160381 A1Dionex Softron GmbH
- Blood treatment system having backflow prevention22 Sep 2022US 2022/0299019 A1Baxter Healthcare S. A.
Most cited
By later US patents
- Linear peristaltic pump249US 6,213,739 B1Niagara Pump Corporation · 2001
- Control system for timing a sequence of events102US 5,174,472 ARaque Food Systems, Inc. · 1992
- Method of observing the pumping characteristics of a positive displacement pump77US 4,705,459 ADowell Schlumberger Incorporated · 1987
- Compressor capacity modulation60US 6,206,652 B1Copeland Corporation · 2001
- Diaphragm pump and related methods54US 8,197,231 B2Purity Solutions LLC · 2012