A61M 16/0468
With valves at the proximal end limiting exhalation
Official title: {with valves at the proximal end limiting exhalation, e.g. during speaking or coughing (air passages from trachea to oesophagus or to pharynx, artificial epiglottis A61F2/203)}
A61M16/0468 (With valves at the proximal end limiting exhalation) appears on 162 US grants and 163 published applications in this corpus.
Search patents in A61M- Granted patents
- 162
- Published applications
- 163
- Assignees
- 79
- Inventors
- 284
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 2 |
| 2003 | 2 | 1 |
| 2004 | 5 | 3 |
| 2005 | 3 | 4 |
| 2006 | 3 | 3 |
| 2007 | 2 | 6 |
| 2008 | 2 | 5 |
| 2009 | 4 | 9 |
| 2010 | 1 | 6 |
| 2011 | 3 | 7 |
| 2012 | 2 | 7 |
| 2013 | 3 | 9 |
| 2014 | 8 | 9 |
| 2015 | 10 | 13 |
| 2016 | 8 | 10 |
| 2017 | 5 | 5 |
| 2018 | 8 | 9 |
| 2019 | 11 | 7 |
| 2020 | 6 | 7 |
| 2021 | 8 | 8 |
| 2022 | 7 | 12 |
| 2023 | 2 | 9 |
| 2024 | 5 | 5 |
| 2025 | 5 | 5 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tracheostoma device holder11 Aug 2026US 12,702,778 B2Coloplast A/S
- Medico-surgical apparatus12 May 2026US 12,623,039 B2Icu Medical International Limited
- Devices, systems and methods for the treatment of sleep apnea6 Jan 2026US 12,514,742 B2Lumen Devices, LLC
- Apparatus for humidifying air entering into a tracheostomy valve7 Oct 2025US 12,434,028 B2Fogless International AB
- Tracheal couplings and associated systems and methods7 Oct 2025US 12,434,031 B2Fisher & Paykel Healthcare Limited
- Heat and moisture exchange medical devices30 Apr 2026US 2026/0115402 A1Hansa Medical Products, Inc.
- Tracheal couplings and associated systems and methods8 Jan 2026US 2026/0007849 A1Fisher & Paykel Healthcare Limited
- Speaking valve, closure means for a speaking valve, and method13 Nov 2025US 2025/0345543 A1
- Breathing protector6 Nov 2025US 2025/0339638 A1Coloplast A/S
- Materials with surface microstructures, methods of making and using the same30 Oct 2025US 2025/0332362 A1
Most cited
By later US patents
- Esophageal-tracheal double lumen airway133US 5,499,625 AThe Kendall Company · 1996
- Systems, methods and apparatus for respiratory support of a patient107US 7,533,670 B1Breathe Technologies, Inc. · 2009
- Duckbill valve for a tracheostomy tube that permits speech103US 5,392,775 A1995
- Control valves for tracheotomy patient or laryngeal prosthesis99US 4,040,428 AThe Aro Corporation · 1977
- Tracheostoma valves98US 4,582,058 ABivona, Inc. · 1986