A61M 1/1672
Using membrane filters
Official title: {using membrane filters, e.g. for sterilising the dialysate}
A61M1/1672 (Using membrane filters) appears on 255 US grants and 301 published applications in this corpus.
Search patents in A61M- Granted patents
- 255
- Published applications
- 301
- Assignees
- 77
- Inventors
- 354
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 15 | 0 |
| 1998 | 11 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 3 |
| 2003 | 2 | 0 |
| 2004 | 2 | 3 |
| 2005 | 1 | 4 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 3 |
| 2010 | 4 | 5 |
| 2011 | 2 | 14 |
| 2012 | 3 | 11 |
| 2013 | 6 | 12 |
| 2014 | 3 | 8 |
| 2015 | 15 | 22 |
| 2016 | 15 | 19 |
| 2017 | 13 | 23 |
| 2018 | 14 | 14 |
| 2019 | 17 | 21 |
| 2020 | 9 | 21 |
| 2021 | 16 | 22 |
| 2022 | 15 | 19 |
| 2023 | 12 | 18 |
| 2024 | 20 | 16 |
| 2025 | 24 | 26 |
| 2026 | 12 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dialysis system having enhanced features including drip prevention11 Aug 2026US 12,702,737 B2Vantive Health GmbH
- Portable dialysate generator28 Jul 2026US 12,691,207 B2TDA Research, Inc.
- Medicament preparation devices, methods, and systems30 Jun 2026US 12,667,652 B2NxStage Medical, Inc.
- Filtration device23 Jun 2026US 12,661,618 B2Gambro Lundia AB
- Medical fluid generation system2 Jun 2026US 12,642,898 B2Vantive Health GmbH
- Medicament Preparation Devices, Methods, and Systems24 Sep 2026US 2026/0284289 A1NxStage Medical, Inc.
- Porous hollow fiber membrane and blood purification module24 Sep 2026US 2026/0284607 A1Toray Industries, Inc.
- System using balancing chambers13 Aug 2026US 2026/0232882 A1Diality Inc.
- Peritoneal dialysis system using disinfection13 Aug 2026US 2026/0232884 A1Vantive Health GmbH
- Sorbent device for regeneration of dialysate25 Jun 2026US 2026/0174942 A1Nextkidney SA
Most cited
By later US patents
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Medicament preparation and treatment devices, methods, and systems259US 10,478,544 B2NxStage Medical, Inc. · 2019
- Automated peritoneal dialysis system and process with in-line sterilization of dialysate252US 6,758,975 B2Piedmont Renal Clinic, PA · 2004
- Hemodialysis machine with automatic priming by induced pressure pulses251US 5,863,421 AAksys, Ltd. · 1999
- Method of rinsing back blood to hemodialysis patient243US 5,690,831 AAksys, Ltd. · 1997