A61M 1/1641
Linked by pistons
Official title: {linked by pistons}
A61M1/1641 (Linked by pistons) appears on 23 US grants and 19 published applications in this corpus.
Search patents in A61M- Granted patents
- 23
- Published applications
- 19
- Assignees
- 19
- Inventors
- 44
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 0 | 1 |
| 2024 | 3 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Peritoneal dialysis system using pressurized chamber and pumping bladder21 Oct 2025US 12,447,250 B2Baxter Healthcare S. A.
- Peritoneal dialysis using pressurized cylinder5 Aug 2025US 12,377,200 B2Baxter Healthcare S. A.
- Dialysis machine and method of operating a balancing chamber system of a dialysis machine17 Sep 2024US 12,090,258 B2Fresenius Medicas Care Deutschland GmbH
- Oxygenator21 May 2024US 11,986,583 B2Terumo Kabushiki Kaisha
- Blood purification apparatus19 Mar 2024US 11,931,498 B2Nikkiso Co., Ltd.
- Pump device26 Feb 2026US 2026/0053993 A1Nikkiso Co., Ltd.
- Peritoneal dialysis system using pressurized chamber and pumping bladder12 Feb 2026US 2026/0041830 A1Baxter Healthcare S. A.
- Peritoneal dialysis using pressurized cylinder27 Nov 2025US 2025/0360255 A1Baxter Healthcare S. A.
- Peritoneal dialysis using pressurized cylinder29 Jun 2023US 2023/0201435 A1Baxter Healthcare S. A.
- Dialysis machine and method of operating a balancing chamber system of a dialysis machine18 Aug 2022US 2022/0257842 A1Fresenius Medical Care Deutschland GmbH
Most cited
By later US patents
- Apparatus and method for controlling ultrafiltration during hemodialysis136US 4,477,342 ABecton, Dickinson and Company · 1984
- Apparatus and method for automatically controlling hemodialysis at a pre-selected ultrafiltration rate123US 4,209,391 ACordis Dow Corp. · 1980
- Method and apparatus for controlled ultrafiltration during hemodialysis93US 4,747,950 ACD Medical, Inc. · 1988
- Fluid separation method and apparatus78US 4,676,905 AToray Industries, Inc. · 1987
- Method and system for pumping two liquids in equal quantities in an artificial kidney78US 4,857,199 AHospal Industrie · 1989