A61M 5/31561
Using freely adjustable volume steps
Official title: {using freely adjustable volume steps}
A61M5/31561 (Using freely adjustable volume steps) appears on 239 US grants and 231 published applications in this corpus.
Search patents in A61M- Granted patents
- 239
- Published applications
- 231
- Assignees
- 74
- Inventors
- 308
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 1 | 3 |
| 2003 | 7 | 3 |
| 2004 | 2 | 8 |
| 2005 | 0 | 3 |
| 2006 | 0 | 6 |
| 2007 | 2 | 3 |
| 2008 | 1 | 9 |
| 2009 | 0 | 8 |
| 2010 | 6 | 9 |
| 2011 | 7 | 8 |
| 2012 | 3 | 16 |
| 2013 | 9 | 21 |
| 2014 | 8 | 9 |
| 2015 | 14 | 9 |
| 2016 | 22 | 26 |
| 2017 | 14 | 19 |
| 2018 | 10 | 16 |
| 2019 | 26 | 12 |
| 2020 | 12 | 9 |
| 2021 | 10 | 6 |
| 2022 | 6 | 7 |
| 2023 | 8 | 9 |
| 2024 | 5 | 6 |
| 2025 | 6 | 3 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for the dosed administration of a fluid product, adapted for the replacement of a container14 Jul 2026US 12,678,568 B2Ypsomed AG
- System and method for microdose injection2 Jun 2026US 12,642,914 B2Credence Medsystems, Inc.
- Dose delivery device with gearing26 May 2026US 12,636,439 B2Shaily Innovations Ltd
- Refill system for medical device using jet delivery principle17 Mar 2026US 12,576,211 B2European Pharma Group BV
- Medicament delivery device6 Jan 2026US 12,514,986 B1Genzyme Corporation
- System and method for multiple site injection2 Jul 2026US 2026/0183489 A1Credence Medsystems, Inc.
- Injector pen and dose adjustment mechanism thereof18 Sep 2025US 2025/0288747 A1Suzhou Healthy Tree Medical Technology Co., Ltd.
- Syringe device with a dose limiting mechanism and an additional safety mechanism19 Jun 2025US 2025/0195784 A1Novo Nordisk A/S
- Method and device for delivering a subcutaneous dose through multiple injections17 Apr 2025US 2025/0121136 A1Portal Instruments, Inc.
- Medical delivery device14 Nov 2024US 2024/0374824 A1Hoffmann-La Roche Inc.
Most cited
By later US patents
- Large dose pen661US 5,626,566 ANovo Nordisk A/S · 1997
- Meter for electrically measuring and recording injection syringe doses604US 5,628,309 ARaya Systems, Inc. · 1997
- Multiple dose injection pen552US 5,226,895 AEli Lilly and Company · 1993
- Medication delivery pen having an improved clutch assembly483US 5,921,966 ABecton, Dickinson and Company · 1999
- Multi-cartridge medication injection device416US 5,584,815 AEli Lilly and Company · 1996