F04B 43/1133
With fluid-actuated pump inlet or outlet valves
Official title: {with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series}
F04B43/1133 (With fluid-actuated pump inlet or outlet valves) appears on 23 US grants and 13 published applications in this corpus.
Search patents in F04B- Granted patents
- 23
- Published applications
- 13
- Assignees
- 15
- Inventors
- 25
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 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 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 3 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cyclic operating pumping method and system18 Mar 2025US 12,253,073 B2Altop Patents III B.V.
- Pump system, use of a pneumatic resistance and medical device or gas-measuring device16 Jul 2024US 12,037,998 B2Dräger Safety AG & Co. KGaA
- Pump system, use of a pneumatic resistance and medical device or gas-measuring device20 Jun 2023US 11,680,562 B2Dräger Safety AG & Co. KGaA
- Electrochemically actuated pump24 Aug 2021US 11,098,707 B2Lynntech, Inc.
- Pump system17 Nov 2020US 10,837,437 B2Shl Medical AG
- Pump system, use of a pneumatic resistance and medical device or gas-measuring device13 Jul 2023US 2023/0220845 A1Dräger Safety AG & Co. KGaA
- Cyclic operating pumping method and system8 Sep 2022US 2022/0282723 A1Altop Patents III B.V.
- Electrochemically Actuated Pump23 Jan 2020US 2020/0025191 A1Lynntech, Inc.
- Pump system12 Jul 2018US 2018/0195506 A1Carebay Europe Ltd
- Pump system, use of a pneumatic resistance and medical device or gas-measuring device29 Jun 2017US 2017/0184093 A1Dräger Safety AG & Co. KGaA
Most cited
By later US patents
- Linear peristaltic pump249US 6,213,739 B1Niagara Pump Corporation · 2001
- Pumping apparatus comprising two collapsible chambers124US 4,158,530 A1979
- Blood pumping system60US 4,047,844 ASearle Cardio-Pulmonary Systems Inc. · 1977
- Condiment dispensing apparatus42US 6,189,736 B1Niagara Pump Corporation · 2001
- Apparatus for pumping a fluid16US 9,518,577 B2Lynntech, Inc. · 2016