A61M 5/1422
With double acting or multiple pistons
Official title: {with double acting or multiple pistons}
A61M5/1422 (With double acting or multiple pistons) appears on 109 US grants and 134 published applications in this corpus.
Search patents in A61M- Granted patents
- 109
- Published applications
- 134
- Assignees
- 59
- Inventors
- 227
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 5 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 2 | 6 |
| 2012 | 4 | 6 |
| 2013 | 2 | 4 |
| 2014 | 7 | 9 |
| 2015 | 7 | 8 |
| 2016 | 8 | 3 |
| 2017 | 6 | 6 |
| 2018 | 5 | 4 |
| 2019 | 2 | 6 |
| 2020 | 3 | 10 |
| 2021 | 4 | 8 |
| 2022 | 6 | 8 |
| 2023 | 10 | 13 |
| 2024 | 4 | 10 |
| 2025 | 10 | 7 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid paths for angiography injector assembly29 Sep 2026US 12,746,330 B2Bayer HealthCare LLC
- Machine and accessories for performing double volume exchange transfusion in neonates22 Sep 2026US 12,741,083 B2Council of Scientific and Industrial Research
- Split piston metering pump4 Aug 2026US 12,697,431 B2Becton, Dickinson and Company
- System and method having transition phase in multi-phase injection protocol16 Jun 2026US 12,653,944 B2Bayer HealthCare LLC
- Cylinder pump26 May 2026US 12,636,427 B2Meinntech Co., Ltd.
- System and method having transition phase in multi-phase injection protocol1 Oct 2026US 2026/0295147 A1Bayer HealthCare LLC
- Full-automatic foaming apparatus and method24 Sep 2026US 2026/0284299 A1Carefree Heartbeat Medical Technology (Shenzhen) Co., Ltd.
- Dedicated consumable sets with flow rate sensors16 Jul 2026US 2026/0199599 A1ICU Medical, Inc.
- Dedicated consumable sets for syringe infusion pumps9 Jul 2026US 2026/0192044 A1ICU Medical, Inc.
- Injection device11 Jun 2026US 2026/0158225 A1Veloject, LLC
Most cited
By later US patents