A61M 5/31598
Having multiple telescopically sliding coaxial pistons encompassing volumes for components to be
Official title: {having multiple telescopically sliding coaxial pistons encompassing volumes for components to be mixed}
A61M5/31598 (Having multiple telescopically sliding coaxial pistons encompassing volumes for components to be) appears on 201 US grants and 222 published applications in this corpus.
Search patents in A61M- Granted patents
- 201
- Published applications
- 222
- Assignees
- 121
- Inventors
- 428
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 4 | 4 |
| 2007 | 0 | 7 |
| 2008 | 1 | 1 |
| 2009 | 1 | 8 |
| 2010 | 4 | 12 |
| 2011 | 5 | 5 |
| 2012 | 3 | 7 |
| 2013 | 6 | 9 |
| 2014 | 7 | 12 |
| 2015 | 12 | 17 |
| 2016 | 7 | 12 |
| 2017 | 10 | 10 |
| 2018 | 10 | 8 |
| 2019 | 12 | 17 |
| 2020 | 8 | 11 |
| 2021 | 8 | 18 |
| 2022 | 11 | 8 |
| 2023 | 8 | 10 |
| 2024 | 15 | 18 |
| 2025 | 9 | 8 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Medical delivery device and drug delivery system3 Mar 2026US 12,564,682 B2Shanghai Microport Medical (Group) Co., Ltd.
- Pressure-regulating fluid transfer systems and methods13 Jan 2026US 12,521,311 B2ICU Medical, Inc.
- Syringe with mixing element6 Aug 2026US 2026/0224817 A1Shaare Zedek Scientific Ltd.
- Particle prevention adapter system for injection pen6 Aug 2026US 2026/0224821 A1Takeda Pharmaceutical Company Limited
- Symmetrical Sequential Stopper for a Multi-Chamber Medical Injection Device16 Apr 2026US 2026/0102565 A1Becton, Dickinson and Company
- Syringe Assembly For Administering Multiple Fluids2 Apr 2026US 2026/0091171 A1
- Two-chamber type combined container-syringe19 Mar 2026US 2026/0076874 A1Daewoong Pharmaceutical Co., Ltd.
Most cited
By later US patents
- Automatic medicament ingredient mixing and injecting apparatus288US 4,755,169 ASurvival Technology, Inc. · 1988
- Syringe barrel for lyophilization, reconstitution and administration232US 5,779,668 AAbbott Laboratories · 1998
- Pre-filled syringe drug delivery system224US 5,785,682 AAbbott Laboratories · 1998
- Automatic medicament ingredient mixing and injecting apparatus223US 4,689,042 ASurvival Technology, Inc. · 1987
- Dual chamber syringe apparatus221US 5,971,953 A1999