A61M 1/3431
Upstream of the filter
Official title: {upstream of the filter}
A61M1/3431 (Upstream of the filter) appears on 340 US grants and 322 published applications in this corpus.
Search patents in A61M- Granted patents
- 340
- Published applications
- 322
- Assignees
- 95
- Inventors
- 462
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 16 | 0 |
| 1998 | 12 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 3 |
| 2002 | 2 | 6 |
| 2003 | 5 | 4 |
| 2004 | 9 | 22 |
| 2005 | 4 | 13 |
| 2006 | 5 | 4 |
| 2007 | 9 | 9 |
| 2008 | 3 | 9 |
| 2009 | 3 | 6 |
| 2010 | 12 | 20 |
| 2011 | 5 | 18 |
| 2012 | 10 | 20 |
| 2013 | 12 | 17 |
| 2014 | 18 | 9 |
| 2015 | 25 | 23 |
| 2016 | 16 | 20 |
| 2017 | 16 | 18 |
| 2018 | 11 | 6 |
| 2019 | 25 | 21 |
| 2020 | 13 | 13 |
| 2021 | 13 | 17 |
| 2022 | 10 | 8 |
| 2023 | 10 | 13 |
| 2024 | 16 | 11 |
| 2025 | 15 | 5 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for extracorporeal treatment of blood including calculation of pre-blood pump infusion flow rate9 Jun 2026US 12,649,021 B2Gambro Lundia AB
- Compounds, systems, and techniques for removal of peripheral amyloid beta peptide with albumin binding competitors12 May 2026US 12,623,013 B2Fresenius Medical Care Holdings, Inc.
- Liquid sample processing device31 Mar 2026US 12,589,193 B2Provigate Inc.
- Blood treatment systems24 Feb 2026US 12,558,468 B2Fresenius Medical Care Deutschland GmbH
- Wearable hemofiltration artificial kidney27 Jan 2026US 12,533,448 B2Volutrol Inc.
- Dialysis system and methods20 Aug 2026US 2026/0241085 A1
- Compounds, systems, and techniques for removal of peripheral amyloid beta peptide with albumin binding competitors30 Jul 2026US 2026/0216415 A1Fresenius Medical Care Holdings, Inc.
- Disposable set, apparatus and procedure of blood recirculation in an extracorporeal blood treatment apparatus23 Jul 2026US 2026/0207836 A1Gambro Lundia AB
- Method for operating a device for extracorporeal blood treatment, and device for extracorporeal blood treatment18 Jun 2026US 2026/0166207 A1
- Extracorporeal blood treatment apparatus28 May 2026US 2026/0144923 A1Gambro Lundia AB
Most cited
By later US patents
- Computer-control medical care system620US 4,370,983 A1983
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Technique for extracorporeal treatment of blood460US 5,910,252 ACobe Laboratories, Inc. · 1999
- Computer-control medical care system374US 4,464,172 A1984
- Medical fluid therapy flow balancing and synchronization system263US 7,029,456 B2Baxter Healthcare S. A. · 2006