A61M 1/34
Filtering material out of the blood by passing it through a membrane
Official title: Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
A61M1/34 (Filtering material out of the blood by passing it through a membrane) appears on 2,499 US grants and 2,840 published applications in this corpus.
Search patents in A61M- Granted patents
- 2,499
- Published applications
- 2,840
- Assignees
- 835
- Inventors
- 3,598
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 13 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 14 | 0 |
| 1984 | 15 | 0 |
| 1985 | 6 | 0 |
| 1986 | 13 | 0 |
| 1987 | 23 | 0 |
| 1988 | 21 | 0 |
| 1989 | 25 | 0 |
| 1990 | 30 | 0 |
| 1991 | 22 | 0 |
| 1992 | 15 | 0 |
| 1993 | 22 | 0 |
| 1994 | 12 | 0 |
| 1995 | 16 | 0 |
| 1996 | 18 | 0 |
| 1997 | 33 | 0 |
| 1998 | 41 | 0 |
| 1999 | 35 | 0 |
| 2000 | 23 | 0 |
| 2001 | 29 | 18 |
| 2002 | 25 | 50 |
| 2003 | 46 | 52 |
| 2004 | 42 | 76 |
| 2005 | 31 | 76 |
| 2006 | 22 | 43 |
| 2007 | 35 | 65 |
| 2008 | 23 | 61 |
| 2009 | 36 | 61 |
| 2010 | 52 | 111 |
| 2011 | 39 | 117 |
| 2012 | 71 | 116 |
| 2013 | 87 | 130 |
| 2014 | 81 | 155 |
| 2015 | 95 | 135 |
| 2016 | 104 | 151 |
| 2017 | 118 | 160 |
| 2018 | 119 | 134 |
| 2019 | 165 | 175 |
| 2020 | 146 | 193 |
| 2021 | 145 | 172 |
| 2022 | 119 | 143 |
| 2023 | 106 | 162 |
| 2024 | 140 | 111 |
| 2025 | 126 | 110 |
| 2026 | 71 | 63 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Support member for an integrated blood treatment fluid module6 Oct 2026US 12,752,043 B2B. Braun Avitum AG
- Methods and systems for high-throughput blood component collection22 Sep 2026US 12,741,074 B2Terumo BCT, Inc.
- System and method for creating cell processing protocols15 Sep 2026US 12,734,284 B2Haemonetics Corporation
- Systems and methods for generating AC volume recommendation for plasma collection8 Sep 2026US 12,728,189 B2Fenwal, Inc.
- Methods for blood component collection8 Sep 2026US 12,728,191 B2Terumo BCT, Inc.
- Plasma detoxification methods and systems1 Oct 2026US 2026/0295135 A1Marker Holdings AG
- Apheresis filter and method for eliminating residual platinum in blood10 Sep 2026US 2026/0263674 A1Byotic R&D Services Sociedad Limitada Unipersonal
- Notification system and device for a blood procedure10 Sep 2026US 2026/0263675 A1Fenwal, Inc.
- Methods and device related to removal of cell-free plasma hemoglobin27 Aug 2026US 2026/0248992 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Extracorporeal blood treatment tubing set and apparatus20 Aug 2026US 2026/0241084 A1Gambro Lundia AB
Most cited
By later US patents
- Method and apparatus for kidney dialysis736US 5,247,434 AAlthin Medical, Inc. · 1993
- Computer-control medical care system620US 4,370,983 A1983
- Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to applied pressures505US 4,479,760 ABaxter Travenol Laboratories, Inc. · 1984
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Autologous blood recovery membrane system and method473US 5,055,198 A1991