A61M 1/308
Volume control
Official title: {Volume control, e.g. with open or flexible containers, by counting the number of pump revolutions, weighing}
A61M1/308 (Volume control) appears on 185 US grants and 96 published applications in this corpus.
Search patents in A61M- Granted patents
- 185
- Published applications
- 96
- Assignees
- 50
- Inventors
- 202
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 4 |
| 2002 | 5 | 10 |
| 2003 | 5 | 7 |
| 2004 | 11 | 7 |
| 2005 | 9 | 5 |
| 2006 | 4 | 8 |
| 2007 | 3 | 6 |
| 2008 | 4 | 2 |
| 2009 | 5 | 3 |
| 2010 | 5 | 2 |
| 2011 | 0 | 2 |
| 2012 | 2 | 4 |
| 2013 | 3 | 3 |
| 2014 | 1 | 5 |
| 2015 | 3 | 1 |
| 2016 | 6 | 3 |
| 2017 | 3 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 4 | 5 |
| 2021 | 1 | 4 |
| 2022 | 1 | 5 |
| 2023 | 2 | 0 |
| 2024 | 2 | 1 |
| 2025 | 5 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Techniques for dialysis based on relative blood volume7 Apr 2026US 12,594,366 B2Fresenius Medical Care Deutschland GmbH
- Combined extracorporeal and drug delivery system and method30 Sep 2025US 12,427,235 B2Baxter Healthcare S. A.
- Red blood cells for drug delivery26 Aug 2025US 12,397,096 B2Politecnico Di Milano
- System and methods for automatic dilution of whole blood to increase plasma clarity19 Aug 2025US 12,390,573 B2Fenwal, Inc.
- Container for fluids and apparatus for temperature control, e.g. warming, of medical fluids3 Jun 2025US 12,318,520 B2Gambro Lundia AB
- Combined extracorporeal and drug delivery system and method29 Jan 2026US 2026/0027272 A1Baxter Healthcare S. A.
- Container for fluids and apparatus for temperature control, e.g. warming, of medical fluids11 Sep 2025US 2025/0281682 A1Gambro Lundia AB
- Single or double lumen system21 Aug 2025US 2025/0262369 A1Stavro Medical, Inc.
- Non-intrusive flow sensor19 Jun 2025US 2025/0198823 A1Mozarc Medical US LLC
- Compact reverse flow centrifuge system23 Jan 2025US 2025/0025892 A1Scinogy Products Pty Ltd
Most cited
By later US patents
- Extracorporeal blood processing methods and apparatus403US 6,200,287 B1Gambro AB · 2001
- Dialysis instrument with dialysate side pump for moving body fluids336US 4,661,246 AAsh Medical Systems, Inc. · 1987
- Hemofiltration and plasmafiltration devices and methods308US 5,919,369 AHemocleanse, Inc. · 1999
- Blood extraction and reinfusion flow control system and method276US 4,657,529 AHemascience Laboratories, Inc. · 1987
- Programmable, fluid pressure actuated blood processing systems and methods236US 6,949,079 B1Baxter International Inc. · 2005