A61M 16/042
With separate conduits for in-and expiration gas
Official title: {with separate conduits for in-and expiration gas, e.g. for limited dead volume}
A61M16/042 (With separate conduits for in-and expiration gas) appears on 104 US grants and 108 published applications in this corpus.
Search patents in A61M- Granted patents
- 104
- Published applications
- 108
- Assignees
- 66
- Inventors
- 175
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 2 |
| 2003 | 6 | 3 |
| 2004 | 4 | 9 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 2 | 2 |
| 2008 | 2 | 13 |
| 2009 | 3 | 7 |
| 2010 | 2 | 3 |
| 2011 | 4 | 8 |
| 2012 | 4 | 5 |
| 2013 | 5 | 6 |
| 2014 | 3 | 8 |
| 2015 | 4 | 2 |
| 2016 | 3 | 6 |
| 2017 | 1 | 1 |
| 2018 | 3 | 2 |
| 2019 | 4 | 3 |
| 2020 | 1 | 5 |
| 2021 | 2 | 3 |
| 2022 | 4 | 6 |
| 2023 | 3 | 3 |
| 2024 | 1 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Nebulizing catheter system and methods of use and manufacture361US 5,964,223 ATrudell Medical Limited · 1999
- Microprocessor-controlled ventilator system and methods273US 5,692,497 AChildren's Medical Center Corporation · 1997
- Multi-purpose tracheal tube249US 4,584,998 AMallinckrodt Inc. · 1986
- Nebulizing catheter system and method of use and manufacture201US 6,526,976 B1Trudell Medical Limited · 2003
- Methods, systems and devices for improving ventilation in a lung area174US 7,588,033 B2Breathe Technologies, Inc. · 2009