A61M 1/303
Having a reservoir for treated blood to be returned
Official title: {having a reservoir for treated blood to be returned}
A61M1/303 (Having a reservoir for treated blood to be returned) appears on 250 US grants and 114 published applications in this corpus.
Search patents in A61M- Granted patents
- 250
- Published applications
- 114
- Assignees
- 49
- Inventors
- 271
- Latest grant
- 11 Aug 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 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 11 | 0 |
| 1996 | 10 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 11 | 4 |
| 2002 | 6 | 12 |
| 2003 | 7 | 7 |
| 2004 | 12 | 9 |
| 2005 | 10 | 6 |
| 2006 | 4 | 8 |
| 2007 | 5 | 6 |
| 2008 | 4 | 3 |
| 2009 | 5 | 5 |
| 2010 | 5 | 4 |
| 2011 | 1 | 4 |
| 2012 | 3 | 5 |
| 2013 | 4 | 6 |
| 2014 | 4 | 9 |
| 2015 | 6 | 1 |
| 2016 | 7 | 4 |
| 2017 | 7 | 3 |
| 2018 | 3 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 3 |
| 2023 | 3 | 4 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and methods incorporating replacement fluid maximization11 Aug 2026US 12,702,738 B2Fenwal, Inc.
- Systems and methods for blood processing with a remote computing device7 Jul 2026US 12,673,145 B2Fenwal, Inc.
- Red blood cells for drug delivery26 Aug 2025US 12,397,096 B2Politecnico Di Milano
- Syringe-based manual extracorporeal blood treatment systems and methods employing batch processing3 Jun 2025US 12,318,526 B2Stavro Medical, Inc.
- System and method for irradiating biological fluids6 May 2025US 12,290,624 B2Fenwal, Inc.
- Alternating flow intravascular catheters and related technologies14 May 2026US 2026/0131058 A1
- Single or double lumen system21 Aug 2025US 2025/0262369 A1Stavro Medical, Inc.
- Blood purification apparatus16 May 2024US 2024/0157037 A1Nikkiso Co., Ltd.
- Single lumen hybrid connection to legacy system23 Nov 2023US 2023/0372594 A1Stavro Medical, Inc.
- System and Methods Incorporating Replacement Fluid Maximization31 Aug 2023US 2023/0270926 A1Fenwal, Inc.
Most cited
By later US patents
- Extracorporeal circulation apparatus437US 4,828,543 A1989
- Integrated cassette for controlling fluid having an integral filter430US 6,491,656 B1Therakos, Inc. · 2002
- Thrombectomy treatment system and method422US 6,719,717 B1Advanced Research and Technology Institute, Inc. · 2004
- Extracorporeal blood processing methods and apparatus403US 6,200,287 B1Gambro AB · 2001
- Blood extraction and reinfusion flow control system and method276US 4,657,529 AHemascience Laboratories, Inc. · 1987