A61M 5/508
Means for preventing re-use by disrupting the piston seal
Official title: {Means for preventing re-use by disrupting the piston seal, e.g. by puncturing}
A61M5/508 (Means for preventing re-use by disrupting the piston seal) appears on 228 US grants and 170 published applications in this corpus.
Search patents in A61M- Granted patents
- 228
- Published applications
- 170
- Assignees
- 86
- Inventors
- 297
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 12 | 0 |
| 1994 | 1 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 15 | 0 |
| 2000 | 16 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 7 |
| 2003 | 10 | 12 |
| 2004 | 8 | 18 |
| 2005 | 6 | 10 |
| 2006 | 7 | 16 |
| 2007 | 6 | 9 |
| 2008 | 8 | 18 |
| 2009 | 8 | 13 |
| 2010 | 6 | 9 |
| 2011 | 7 | 11 |
| 2012 | 10 | 7 |
| 2013 | 6 | 3 |
| 2014 | 6 | 3 |
| 2015 | 3 | 4 |
| 2016 | 8 | 7 |
| 2017 | 4 | 4 |
| 2018 | 3 | 4 |
| 2019 | 2 | 4 |
| 2020 | 3 | 1 |
| 2021 | 2 | 2 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Retractable needle hypodermic syringe system233US 4,994,034 A1991
- Intravenous catheter insertion device with retractable needle217US 5,407,431 AMed-Design, Inc. · 1995
- Full displacement retractable syringe204US 6,015,438 ARetractable Technologies, Inc. · 2000
- Retractable needle medical devices195US 6,179,812 B2MDC Investment Holdings, Inc. · 2001
- Safety hypodermic syringe with retractable needle186US 5,180,370 A1993