A61M 16/08
Bellows
Official title: Bellows; Connecting tubes {(having means for taking samples G01N1/22); Water traps; Patient circuits}
A61M16/08 (Bellows) appears on 5,732 US grants and 7,535 published applications in this corpus.
Search patents in A61M- Granted patents
- 5,732
- Published applications
- 7,535
- Assignees
- 1,579
- Inventors
- 8,021
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 12 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 27 | 0 |
| 1982 | 12 | 0 |
| 1983 | 14 | 0 |
| 1984 | 20 | 0 |
| 1985 | 21 | 0 |
| 1986 | 18 | 0 |
| 1987 | 17 | 0 |
| 1988 | 11 | 0 |
| 1989 | 28 | 0 |
| 1990 | 18 | 0 |
| 1991 | 27 | 0 |
| 1992 | 29 | 0 |
| 1993 | 23 | 0 |
| 1994 | 49 | 0 |
| 1995 | 42 | 0 |
| 1996 | 45 | 0 |
| 1997 | 45 | 0 |
| 1998 | 41 | 0 |
| 1999 | 46 | 0 |
| 2000 | 56 | 0 |
| 2001 | 47 | 23 |
| 2002 | 67 | 76 |
| 2003 | 105 | 107 |
| 2004 | 71 | 140 |
| 2005 | 62 | 140 |
| 2006 | 91 | 171 |
| 2007 | 73 | 163 |
| 2008 | 63 | 196 |
| 2009 | 65 | 234 |
| 2010 | 90 | 237 |
| 2011 | 124 | 219 |
| 2012 | 170 | 257 |
| 2013 | 245 | 349 |
| 2014 | 221 | 368 |
| 2015 | 241 | 424 |
| 2016 | 239 | 402 |
| 2017 | 235 | 372 |
| 2018 | 278 | 337 |
| 2019 | 343 | 385 |
| 2020 | 361 | 437 |
| 2021 | 333 | 495 |
| 2022 | 363 | 473 |
| 2023 | 339 | 464 |
| 2024 | 335 | 451 |
| 2025 | 328 | 385 |
| 2026 | 211 | 230 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connectors for conduits6 Oct 2026US 12,752,069 B2Fisher & Paykel Healthcare Limited
- Connector for a frame of a respirator6 Oct 2026US 12,752,070 B2Dcstar Inc
- 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.
- Headgear assemblies and interface assemblies with headgear29 Sep 2026US 12,746,360 B2Fisher & Paykel Healthcare Limited
- Nasal/oral cannula system and manufacturing8 Oct 2026US 2026/0305976 A1Masimo Sweden AB
- 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
- Patient interface8 Oct 2026US 2026/0306774 A1ResMed Pty Ltd
- Patient interface including flow generator8 Oct 2026US 2026/0306775 A1ResMed Pty Ltd
Most cited
By later US patents
- Control of respiratory oxygen delivery1,146US 6,186,142 B1Minnesota Innovative Technologies & Instruments Corporation (MITI) · 2001
- Nasal puff with adjustable sealing means1,062US 4,782,832 APuritan-Bennett Corporation · 1988
- Respiratory monitoring900US 8,028,701 B2Masimo Corporation · 2011
- Respiratory mask having gas washout vent and gas washout vent for respiratory mask682US 6,581,594 B1ResMed Limited · 2003
- Face mask for patient breathing630US 5,921,239 ASunrise Medical HHG Inc. · 1999