A61M 16/203
Proportional
Official title: {Proportional}
A61M16/203 (Proportional) appears on 833 US grants and 1,156 published applications in this corpus.
Search patents in A61M- Granted patents
- 833
- Published applications
- 1,156
- Assignees
- 393
- Inventors
- 1,785
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 16 | 0 |
| 2000 | 21 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 10 |
| 2003 | 15 | 9 |
| 2004 | 11 | 15 |
| 2005 | 10 | 26 |
| 2006 | 11 | 16 |
| 2007 | 9 | 26 |
| 2008 | 3 | 32 |
| 2009 | 9 | 24 |
| 2010 | 8 | 21 |
| 2011 | 18 | 48 |
| 2012 | 22 | 28 |
| 2013 | 30 | 58 |
| 2014 | 40 | 57 |
| 2015 | 29 | 66 |
| 2016 | 27 | 51 |
| 2017 | 34 | 44 |
| 2018 | 35 | 35 |
| 2019 | 43 | 51 |
| 2020 | 45 | 68 |
| 2021 | 44 | 94 |
| 2022 | 59 | 100 |
| 2023 | 46 | 87 |
| 2024 | 56 | 80 |
| 2025 | 53 | 68 |
| 2026 | 28 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for controlling valve6 Oct 2026US 12,752,072 B2Koninklijke Philips N. V.
- Systems and methods of aerosol delivery with airflow regulation15 Sep 2026US 12,734,317 B2Altria Client Services LLC
- Ventilator system25 Aug 2026US 12,714,812 B2Koninklijke Philips N. V.
- Method and apparatus for providing percussive ventilation therapy to a patient airway18 Aug 2026US 12,708,732 B2CircuitLife, LLC
- Absorption arrangement with a CO2 absorber and a water trap and process for filtering out CO218 Aug 2026US 12,708,734 B2Drägerwerk AG & Co. KGaA
- Device for supplying breating gas8 Oct 2026US 2026/0306770 A1Loewenstein Medical Technology S.A.
- Supplementary gas source detection and related apparatuses and methods10 Sep 2026US 2026/0263726 A1Fisher & Paykel Healthcare Limited
- End tidal carbon dioxide measurement during high flow oxygen therapy27 Aug 2026US 2026/0248410 A1Covidien LP
- Clamping valve assembly for a ventilator27 Aug 2026US 2026/0249034 A1The Children’s Hospital of Philadelphia
- Device for regulating oxygen for automated oxygen therapy27 Aug 2026US 2026/0249035 A1O2Matic Aps
Most cited
By later US patents
- Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders565US 5,148,802 ARespironics, Inc. · 1992
- Control for CPAP apparatus499US 5,551,419 ADeVilbiss Health Care, Inc. · 1996
- Inspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patency380US 5,549,106 APuritan-Bennett Corporation · 1996
- Stimulatory device and methods to electrically stimulate the phrenic nerve378US 6,463,327 B1CPRx LLC · 2002
- System and method for flow triggering of pressure supported ventilation365US 5,161,525 APuritan-Bennett Corporation · 1992