A61M 16/20
Valves specially adapted to medical respiratory devices
A61M16/20 (Valves specially adapted to medical respiratory devices) appears on 3,529 US grants and 4,829 published applications in this corpus.
Search patents in A61M- Granted patents
- 3,529
- Published applications
- 4,829
- Assignees
- 1,433
- Inventors
- 6,234
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 12 | 0 |
| 1978 | 10 | 0 |
| 1979 | 7 | 0 |
| 1980 | 14 | 0 |
| 1981 | 8 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 13 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 15 | 0 |
| 1990 | 11 | 0 |
| 1991 | 14 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 17 | 0 |
| 1995 | 26 | 0 |
| 1996 | 36 | 0 |
| 1997 | 39 | 0 |
| 1998 | 47 | 0 |
| 1999 | 32 | 0 |
| 2000 | 43 | 0 |
| 2001 | 25 | 8 |
| 2002 | 34 | 48 |
| 2003 | 55 | 62 |
| 2004 | 36 | 68 |
| 2005 | 36 | 79 |
| 2006 | 46 | 66 |
| 2007 | 36 | 93 |
| 2008 | 28 | 118 |
| 2009 | 28 | 130 |
| 2010 | 43 | 110 |
| 2011 | 77 | 158 |
| 2012 | 84 | 132 |
| 2013 | 135 | 198 |
| 2014 | 132 | 246 |
| 2015 | 131 | 289 |
| 2016 | 122 | 243 |
| 2017 | 159 | 235 |
| 2018 | 175 | 209 |
| 2019 | 211 | 243 |
| 2020 | 232 | 304 |
| 2021 | 238 | 373 |
| 2022 | 249 | 373 |
| 2023 | 221 | 352 |
| 2024 | 221 | 301 |
| 2025 | 217 | 245 |
| 2026 | 130 | 146 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for controlling valve6 Oct 2026US 12,752,072 B2Koninklijke Philips N. V.
- Aerosol spirometer and method of using same29 Sep 2026US 12,745,922 B2
- Respiratory ventilatory device and method of operating same29 Sep 2026US 12,746,356 B2Soco International LLC
- Mask, sample collecting tube, and pathogen collecting apparatus29 Sep 2026US 12,746,358 B2MGI Tech Co., Ltd.
- Ventilator condensation trap29 Sep 2026US 12,746,361 B2
- Device for supplying breating gas8 Oct 2026US 2026/0306770 A1Loewenstein Medical Technology S.A.
- NO delivery apparatus incorporating flexible conduit purge means8 Oct 2026US 2026/0306773 A1Inosystems
- Aerosol delivery device with completed dosage indicator24 Sep 2026US 2026/0284334 A1Trudell Medical International
- Inverted nozzle fixture and method17 Sep 2026US 2026/0273208 A1Invox Belgium NV
- Assisted breathing apparatus and method17 Sep 2026US 2026/0273211 A1Aria Metasystems S.A.P.I. De C.V.
Most cited
By later US patents
- Delivery of aerosol medications for inspiration598US 5,404,871 AAradigm Corporation · 1995
- Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders565US 5,148,802 ARespironics, Inc. · 1992
- Facial masks for assisted respiration or CPAP557US 5,560,354 AResCare Limited · 1996
- Nasal ventilation interface509US 6,478,026 B12002
- Assistive capnography device505US 10,532,174 B2Masimo Corporation · 2020