A61M 16/207
Membrane valves with pneumatic amplification stage, i.e. having leader and follower membranes
Official title: {Membrane valves with pneumatic amplification stage, i.e. having leader and follower membranes}
A61M16/207 (Membrane valves with pneumatic amplification stage, i.e. having leader and follower membranes) appears on 110 US grants and 99 published applications in this corpus.
Search patents in A61M- Granted patents
- 110
- Published applications
- 99
- Assignees
- 70
- Inventors
- 184
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 4 |
| 2005 | 0 | 2 |
| 2006 | 5 | 4 |
| 2007 | 0 | 4 |
| 2008 | 1 | 4 |
| 2009 | 2 | 3 |
| 2010 | 2 | 5 |
| 2011 | 0 | 1 |
| 2012 | 6 | 8 |
| 2013 | 6 | 11 |
| 2014 | 4 | 1 |
| 2015 | 5 | 2 |
| 2016 | 7 | 12 |
| 2017 | 6 | 7 |
| 2018 | 5 | 4 |
| 2019 | 5 | 6 |
| 2020 | 8 | 2 |
| 2021 | 3 | 3 |
| 2022 | 6 | 4 |
| 2023 | 3 | 3 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas-driven, pressure-regulated ventilator22 Sep 2026US 12,741,116 B2Oregon Health & Science University
- Respiratory therapy systems and methods30 Dec 2025US 12,508,389 B2Ventec Life Systems, Inc.
- Breathing lung device6 Aug 2024US 12,053,579 B2Gyrus ACMI, Inc.
- Ventilator with integrated cough-assist28 May 2024US 11,992,619 B2Ventec Life Systems, Inc.
- Breathable gas inlet control device for respiratory treatment apparatus8 Aug 2023US 11,717,637 B2ResMed Paris SAS
- Respiratory therapy systems and methods23 Jul 2026US 2026/0207873 A1Ventec Life Systems, Inc.
- Selective attachment device with multiple fluid sources for maintaining positive fluid pressure29 May 2025US 2025/0170360 A1Legacy Innovation Inc.
- Surgical gas delivery system for gas sealed insufflation and recirculation with pneumatically powered blocking valves15 May 2025US 2025/0152906 A1Conmed Corporation
- Breathable gas inlet control device for respiratory treatment apparatus2 Nov 2023US 2023/0347099 A1ResMed Paris SAS
- Gas-driven, pressure-regulated ventilator20 Jul 2023US 2023/0226305 A1Oregon Health & Science University
Most cited
By later US patents
- Control for a demand cannula128US 4,054,133 AThe Bendix Corporation · 1977
- Tracheal pressure ventilation respiratory system114US 6,571,796 B2University of Florida · 2003
- Electronically controlled respirator105US 4,393,869 ACanadian Patents and Development Limited · 1983
- Variable pressure and flow control for a pneumatically-operated gas demand apparatus98US 6,378,520 B1Salter Labs · 2002
- Ventilators for promoting lung function87US 5,564,416 APneupac Limited · 1996