A61M 16/209
Relief valves
Official title: {Relief valves}
A61M16/209 (Relief valves) appears on 627 US grants and 819 published applications in this corpus.
Search patents in A61M- Granted patents
- 627
- Published applications
- 819
- Assignees
- 376
- Inventors
- 1,508
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 13 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 18 | 0 |
| 2001 | 1 | 3 |
| 2002 | 10 | 14 |
| 2003 | 17 | 16 |
| 2004 | 10 | 16 |
| 2005 | 11 | 15 |
| 2006 | 10 | 12 |
| 2007 | 11 | 20 |
| 2008 | 5 | 28 |
| 2009 | 5 | 18 |
| 2010 | 13 | 27 |
| 2011 | 16 | 32 |
| 2012 | 16 | 18 |
| 2013 | 29 | 35 |
| 2014 | 25 | 33 |
| 2015 | 14 | 27 |
| 2016 | 17 | 21 |
| 2017 | 17 | 40 |
| 2018 | 25 | 30 |
| 2019 | 27 | 31 |
| 2020 | 34 | 51 |
| 2021 | 33 | 60 |
| 2022 | 43 | 68 |
| 2023 | 33 | 59 |
| 2024 | 34 | 66 |
| 2025 | 36 | 50 |
| 2026 | 21 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for improved assisted ventilation22 Sep 2026US 12,741,110 B2CoLabs Medical, Inc.
- Systems and methods of aerosol delivery with airflow regulation15 Sep 2026US 12,734,317 B2Altria Client Services LLC
- Method and apparatus for providing percussive ventilation therapy to a patient airway18 Aug 2026US 12,708,732 B2CircuitLife, LLC
- Taking up system and process with a filter unit for the receiving of gas from a medical apparatus21 Jul 2026US 12,685,836 B2Drägerwerk AG & Co. KGaA
- Ventilator7 Jul 2026US 12,673,178 B2
- Pressure controlled exhaust vent27 Aug 2026US 2026/0249036 A1Fisher & Paykel Healthcare Limited
- Automated cuff pressure modulation system for endotracheal tubes20 Aug 2026US 2026/0241129 A1Cuffway LLC
- Methods and apparatus for oxygenation and/or co2 removal6 Aug 2026US 2026/0224833 A1Fisher & Paykel Healthcare Limited
- Respiratory ventilatory device and method of operating same6 Aug 2026US 2026/0224835 A1Soco International LLC
- Oxygen humidifier and methods of use30 Jul 2026US 2026/0216466 A1
Most cited
By later US patents
- Facial masks for assisted respiration or CPAP557US 5,560,354 AResCare Limited · 1996
- Facial masks for assisted respiration or CPAP378US 6,123,071 AResMed Limited · 2000
- Stimulatory device and methods to electrically stimulate the phrenic nerve378US 6,463,327 B1CPRx LLC · 2002
- Flexible valve for administering constant flow rates of medicine from a nebulizer322US 5,655,520 A1997
- Human lung ventilator system318US 5,237,987 AInfrasonics, Inc. · 1993