A61M 1/3427
Back through the membrane
Official title: {back through the membrane, e.g. by inverted trans-membrane pressure [TMP]}
A61M1/3427 (Back through the membrane) appears on 118 US grants and 94 published applications in this corpus.
Search patents in A61M- Granted patents
- 118
- Published applications
- 94
- Assignees
- 50
- Inventors
- 139
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 5 |
| 2002 | 2 | 4 |
| 2003 | 2 | 3 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 0 | 2 |
| 2011 | 2 | 10 |
| 2012 | 0 | 3 |
| 2013 | 3 | 9 |
| 2014 | 3 | 4 |
| 2015 | 12 | 6 |
| 2016 | 7 | 8 |
| 2017 | 9 | 7 |
| 2018 | 2 | 1 |
| 2019 | 9 | 2 |
| 2020 | 1 | 4 |
| 2021 | 4 | 5 |
| 2022 | 2 | 3 |
| 2023 | 5 | 2 |
| 2024 | 8 | 5 |
| 2025 | 4 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dialysis machine and method of operating a balancing chamber system of a dialysis machine5 May 2026US 12,616,786 B2Fresenius Medical Care Deutschland GmbH
- Extracorporeal blood filtering machine and methods30 Dec 2025US 12,508,351 B2Nuwellis, Inc.
- Extracorporeal blood filtering machine and methods16 Sep 2025US 12,415,021 B2Nuwellis, Inc.
- Extracorporeal blood filtering machine and methods15 Jul 2025US 12,357,734 B2Nuwellis, Inc.
- Extracorporeal blood filtering machine and methods22 Apr 2025US 12,280,007 B2Nuwellis, Inc.
- Dialyzer for Blood Treatment and Corresponding System28 Aug 2025US 2025/0269098 A1Fresenius Medical Care Deutschland GmbH
- Method for Operating Blood Treatment System and Corresponding Blood Treatment System28 Aug 2025US 2025/0269099 A1Fresenius Medical Care Deutschland GmbH
- Phased convective operation15 May 2025US 2025/0152793 A1Quanta Dialysis Technologies Limited
- Implantable fluid conduit system26 Dec 2024US 2024/0424178 A1Fresenius Medical Care Holdings, Inc.
- Extracorporeal blood filtering machine and methods22 Aug 2024US 2024/0277928 A1Nuwellis, Inc.
Most cited
By later US patents
- Extracorporeal circulation apparatus437US 4,828,543 A1989
- Hemofiltration and plasmafiltration devices and methods308US 5,919,369 AHemocleanse, Inc. · 1999
- Blood treatment systems and methods274US 8,409,441 B2DEKA Products Limited Partnership · 2013
- Combined hemofiltration and hemodialysis system264US 5,114,580 AThe Board of Regents of the University of Washington · 1992
- High convection home hemodialysis/hemofiltration and sorbent system230US 8,029,454 B2Baxter Healthcare S. A. · 2011