Three-position plungers, film coated plungers and related syringe assemblies
US-2017296756-A1 · Oct 19, 2017 · US
having air entrapping or venting means, e.g. purging channels in pistons
having air entrapping or venting means, e.g. purging channels in pistons · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A61M2005/3123 |
| Official title | {having air entrapping or venting means, e.g. purging channels in pistons} |
| Display label | having air entrapping or venting means, e.g. purging channels in pistons |
| Total patents | 230 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 25 |
| 2017 | 22 |
| 2018 | 12 |
| 2019 | 28 |
| 2020 | 25 |
| 2021 | 21 |
| 2022 | 19 |
| 2023 | 21 |
| 2024 | 20 |
| 2025 | 14 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Biopsy device
US-9775588-B2 · Oct 3, 2017 · US
Administration instrument for medical use
US-2017266390-A1 · Sep 21, 2017 · US
Biopsy device
US-2017258458-A1 · Sep 14, 2017 · US
Enteral syringe
US-9757522-B2 · Sep 12, 2017 · US
Fluid infusion device and related sealing assembly for a needleless fluid reservoir
US-2017182307-A1 · Jun 29, 2017 · US
Non-vented vial access syringe
US-2017156984-A1 · Jun 8, 2017 · US
Devices and methods for delivering medicaments from a multi-chamber container
US-2017151393-A1 · Jun 1, 2017 · US
Fluid infusion device and related sealing assembly for a needleless fluid reservoir
US-9629992-B2 · Apr 25, 2017 · US
Cartridge for containing and dispensing a medicament
US-9623184-B2 · Apr 18, 2017 · US
Pressure vented fluid reservoir having a movable septum
US-9610431-B2 · Apr 4, 2017 · US
Rotation resistant friction adapter for plunger driver of drug delivery device
US-2017080158-A1 · Mar 23, 2017 · US
Bladder syringe fluid delivery system
US-2017065770-A1 · Mar 9, 2017 · US
Positive Displacement Flush Syringe
US-2017056595-A1 · Mar 2, 2017 · US
Devices and methods for delivering medicaments from a multi-chamber container
US-9522235-B2 · Dec 20, 2016 · US
Positive displacement flush syringe
US-9522237-B2 · Dec 20, 2016 · US
Bladder syringe fluid delivery system
US-9498570-B2 · Nov 22, 2016 · US
Universal plunger rods, systems, and methods of use and assembly
US-2016325048-A1 · Nov 10, 2016 · US
Automated method for simultaneous bubble detection and expulsion
US-9486589-B2 · Nov 8, 2016 · US
Multi-purpose syringe
US-9474863-B2 · Oct 25, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A61M2005/3123?
- CPC A61M2005/3123 is the Cooperative Patent Classification code for “having air entrapping or venting means, e.g. purging channels in pistons.”
- How many patents are filed under CPC A61M2005/3123 (having air entrapping or venting means, e.g. purging channels in pistons)?
- Our database includes 230 publications tagged with this CPC code.
- Is patent activity under CPC A61M2005/3123 growing?
- Publication counts under this code: 20 in 2024 vs 14 in 2025 (latest complete years).