A61M 1/32
Oxygenators without membranes
A61M1/32 (Oxygenators without membranes) appears on 312 US grants and 282 published applications in this corpus.
Search patents in A61M- Granted patents
- 312
- Published applications
- 282
- Assignees
- 149
- Inventors
- 454
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 11 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 2 |
| 2002 | 3 | 10 |
| 2003 | 9 | 5 |
| 2004 | 3 | 10 |
| 2005 | 5 | 13 |
| 2006 | 5 | 10 |
| 2007 | 4 | 6 |
| 2008 | 5 | 4 |
| 2009 | 4 | 10 |
| 2010 | 12 | 11 |
| 2011 | 7 | 14 |
| 2012 | 10 | 10 |
| 2013 | 8 | 13 |
| 2014 | 11 | 17 |
| 2015 | 9 | 20 |
| 2016 | 6 | 14 |
| 2017 | 12 | 16 |
| 2018 | 8 | 6 |
| 2019 | 14 | 15 |
| 2020 | 7 | 7 |
| 2021 | 11 | 13 |
| 2022 | 9 | 17 |
| 2023 | 6 | 16 |
| 2024 | 8 | 5 |
| 2025 | 10 | 12 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catheters and systems for direct injection of gas-enriched liquid into a patient6 Oct 2026US 12,752,078 B2Zoll Circulation, Inc.
- Cardiac drainage cannula and related methods and systems11 Aug 2026US 12,702,743 B2Berlin Heart GmbH
- Infusing dissolved oxygen into I.V. fluids to provide short term emergency oxygenation of venous blood for compromised or trauma patients2 Jun 2026US 12,642,902 B2GIS Ventures Inc.
- Catheter for membrane blood oxygenation28 Apr 2026US 12,611,536 B2
- Trauma patient hemorrhage control including rapid autotransfusion17 Mar 2026US 12,576,198 B2Lazarus Technologies LLC
- Infusing dissolved oxygen into i.v. fluids to provide short term emergency oxygenation of venous blood for compromised or trauma patients10 Sep 2026US 2026/0263673 A1GIS Ventures Inc.
- Oxygen enema composition, enema device, and method for producing oxygen enema composition23 Jul 2026US 2026/0207658 A1MediScience Espoir Inc.
- Trauma patient hemorrhage control including rapid autotransfusion23 Jul 2026US 2026/0207834 A1Lazarus Technologies LLC
- Alternating flow intravascular catheters and related technologies14 May 2026US 2026/0131058 A1
- Advanced methods and system for controlled whole body hyperthermia14 May 2026US 2026/0131062 A1Verthermia Inc
Most cited
By later US patents
- Method for enriching a bodily fluid with a gas1,051US 6,974,435 B2TherOx, Inc. · 2005
- Method and apparatus for controlling fluid pumps304US 6,783,328 B2Terumo Cardiovascular Systems Corporation · 2004
- Method for the preparation and delivery of gas-enriched fluids188US 6,180,059 B2TherOx, Inc. · 2001
- Continuous flow-through peritoneal dialysis (CFPD) method with control of intraperitoneal pressure169US 6,409,699 B1Renal Solutions, Inc. · 2002
- Bubble detector and method of use thereof156US 6,622,542 B2TherOx, Inc. · 2003