A61F 2/203
Comprising an air passage from trachea to oesophagus or to pharynx
Official title: {comprising an air passage from trachea to oesophagus or to pharynx; Artificial epiglottis}
A61F2/203 (Comprising an air passage from trachea to oesophagus or to pharynx) appears on 108 US grants and 86 published applications in this corpus.
Search patents in A61F- Granted patents
- 108
- Published applications
- 86
- Assignees
- 50
- Inventors
- 154
- Latest grant
- 11 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 5 |
| 2005 | 2 | 6 |
| 2006 | 2 | 4 |
| 2007 | 1 | 2 |
| 2008 | 3 | 3 |
| 2009 | 1 | 10 |
| 2010 | 1 | 4 |
| 2011 | 3 | 4 |
| 2012 | 6 | 3 |
| 2013 | 4 | 6 |
| 2014 | 6 | 5 |
| 2015 | 4 | 5 |
| 2016 | 3 | 5 |
| 2017 | 6 | 4 |
| 2018 | 1 | 2 |
| 2019 | 6 | 3 |
| 2020 | 1 | 4 |
| 2021 | 2 | 2 |
| 2022 | 3 | 3 |
| 2023 | 0 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Occluding stent, implanter thereof, and implanting method thereof11 Mar 2025US 12,245,768 B2Jiangsu Province Hospital
- Easy voice prosthesis loading insertion device19 Mar 2024US 11,931,249 B2Freudenberg Medical, LLC
- Voice prosthesis with connecting feature19 Mar 2024US 11,931,250 B2Eon Meditech Pvt. Ltd.
- Heat and moisture exchanger with lipped valve plate and grooved valve seat23 Jan 2024US 11,878,121 B2Andreas Fahl Medizintechnik—Vertrieb GmbH
- Adjustable tracheostoma valve15 Nov 2022US 11,497,871 B2
- Artificial epiglottis, and swallowing and breathing switching device11 Sep 2025US 2025/0281279 A1Murata Manufacturing Co., Ltd.
- Rhamnolipid coating of medical devices20 Jun 2024US 2024/0197955 A1Atos Medical AB
- Voice generation system and method21 Dec 2023US 2023/0404747 A1Laronix Pty Ltd
- Voice prosthesis with umbrella valve20 Apr 2023US 2023/0121047 A1Freudenberg Medical, LLC
- Easy voice prosthesis loading insertion device8 Dec 2022US 2022/0387172 A1Freudenberg Medical, LLC
Most cited
By later US patents
- Intralaryngeal prosthesis94US 5,911,756 ANovatech SA · 1999
- Voice button prosthesis and method for installing same93US 4,808,183 AUniversity of Iowa Research Foundation · 1989
- Talking tracheostomy tube84US 4,449,523 AImplant Technologies, Inc. · 1984
- Tracheoesophageal voice prosthesis72US 5,391,205 A1995
- Trachostoma valve and tissue connector and housing for use as a part thereof71US 5,765,560 AAdeva Medical, Gesellschaft fur Entwicklung und Vertrieb von Medizinischen, Implantat-Artikeln mbH · 1998