A61M 16/168
Having a dual float
Official title: {having a dual float}
A61M16/168 (Having a dual float) appears on 27 US grants and 28 published applications in this corpus.
Search patents in A61M- Granted patents
- 27
- Published applications
- 28
- Assignees
- 12
- Inventors
- 63
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 3 | 1 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 3 | 1 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Float-controlled valve array having redundantly acting float bodies28 Apr 2026US 12,611,518 B2Hamilton Medical AG
- Float retention arrangement for humidification chamber9 Sep 2025US 12,409,294 B2Fisher & Paykel Healthcare Limited
- Respiratory humidification device4 Feb 2025US 12,214,138 B2Globalmed Inc.
- Humidification system22 Oct 2024US 12,121,668 B2Fisher & Paykel Healthcare Limited
- Humidification system6 Aug 2024US 12,053,589 B2Fisher & Paykel Healthcare Limited
- Humidification system7 Aug 2025US 2025/0249201 A1Fisher & Paykel Healthcare Limited
- Respiratory humidification device5 Jun 2025US 2025/0177677 A1Globalmed Inc.
- Humidification system9 Jan 2025US 2025/0010016 A1Fisher & Paykel Healthcare Limited
- Usability features for respiratory humidification system4 Apr 2024US 2024/0108846 A1Fisher & Paykel Healthcare Limited
- Float retention arrangement for humidification chamber28 Dec 2023US 2023/0414897 A1Fisher & Paykel Healthcare Limited
Most cited
By later US patents
- Humidifier with dual float valves140US 5,445,143 AFisher & Paykel Limited · 1995
- Humidification system85US 7,306,205 B2Fisher & Paykel Healthcare Limited · 2007
- Humidifier and heater66US 4,529,867 AInspiron Corporation · 1985
- Humidification chambers24US 8,181,940 B2Intersurgical AG · 2012
- Humidifier with water overflow relief mechanism16US 4,461,735 AMinnesota Mining and Manufacturing Company · 1984