A61M 5/14216
Reciprocating piston type
Official title: {Reciprocating piston type}
A61M5/14216 (Reciprocating piston type) appears on 766 US grants and 959 published applications in this corpus.
Search patents in A61M- Granted patents
- 766
- Published applications
- 959
- Assignees
- 256
- Inventors
- 1,252
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 6 | 13 |
| 2003 | 5 | 14 |
| 2004 | 7 | 20 |
| 2005 | 10 | 19 |
| 2006 | 12 | 15 |
| 2007 | 10 | 25 |
| 2008 | 11 | 29 |
| 2009 | 8 | 38 |
| 2010 | 17 | 49 |
| 2011 | 37 | 34 |
| 2012 | 34 | 68 |
| 2013 | 42 | 39 |
| 2014 | 32 | 56 |
| 2015 | 38 | 48 |
| 2016 | 47 | 49 |
| 2017 | 34 | 38 |
| 2018 | 44 | 28 |
| 2019 | 42 | 52 |
| 2020 | 43 | 52 |
| 2021 | 27 | 44 |
| 2022 | 46 | 49 |
| 2023 | 44 | 56 |
| 2024 | 40 | 50 |
| 2025 | 43 | 37 |
| 2026 | 19 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Drug delivery device drive sensor15 Sep 2026US 12,734,289 B2Insulet Corporation
- Split piston metering pump4 Aug 2026US 12,697,431 B2Becton, Dickinson and Company
- Device for subcutaneous delivery of fluid medicament4 Aug 2026US 12,697,434 B2NeuroDerm, Ltd.
- System and method having transition phase in multi-phase injection protocol1 Oct 2026US 2026/0295147 A1Bayer HealthCare LLC
- Device for subcutaneous delivery of fluid medicament1 Oct 2026US 2026/0295153 A1NeuroDerm, Ltd.
- Full-automatic foaming apparatus and method24 Sep 2026US 2026/0284299 A1Carefree Heartbeat Medical Technology (Shenzhen) Co., Ltd.
- Drive mechanism for positive displacement pumps17 Sep 2026US 2026/0273173 A1Insulet Corporation
- Molded Piston Seal With Anti-Leak Deported Split Line3 Sep 2026US 2026/0258864 A1Becton, Dickinson and Company
Most cited
By later US patents
- Implantable microinfusion pump system579US 4,487,603 ACordis Corporation · 1984
- Infusion device and driving mechanism and process for same with actuator for multiple infusion uses522US 6,932,584 B2Medtronic MiniMed, Inc. · 2005
- Device and method employing shape memory alloy491US 6,916,159 B2TheraSense, Inc. · 2005
- Infusion pumps and methods and delivery devices and methods with same487US 8,202,250 B2Medtronic MiniMed, Inc. · 2012
- Drug delivery device463US 6,595,956 B12003