Fountain pen with quick-filling coupling
US-12030338-B2 · Jul 9, 2024 · US
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with movable pistons {for withdrawing ink from an ink-receptacle (B43K5/1818 takes precedence)}
with movable pistons {for withdrawing ink from an ink-receptacle (B43K5/1818 takes precedence)} · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B43K5/06 |
| Official title | with movable pistons {for withdrawing ink from an ink-receptacle (B43K5/1818 takes precedence)} |
| Display label | with movable pistons {for withdrawing ink from an ink-receptacle (B43K5/1818 takes precedence)} |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal pressure regulating marker pen
US-11964510-B2 · Apr 23, 2024 · US
Fountain pen with quick-filling coupling
US-2023331027-A1 · Oct 19, 2023 · US
Internal Pressure Regulating Marker Pen
US-2023102068-A1 · Mar 30, 2023 · US
Liquid storage and release device and pen
US-11548313-B2 · Jan 10, 2023 · US
Internal pressure regulating marker pen
US-11524517-B2 · Dec 13, 2022 · US
Internal Pressure Regulating Marker Pen
US-2022016925-A1 · Jan 20, 2022 · US
Internal pressure regulating marker pen
US-11148461-B2 · Oct 19, 2021 · US
Liquid Storage and Release Device and Pen
US-2021122183-A1 · Apr 29, 2021 · US
Internal Pressure Regulating Marker Pen
US-2020180349-A1 · Jun 11, 2020 · US
Internal pressure regulating marker pen
US-10603947-B2 · Mar 31, 2020 · US
Internal pressure regulating marker pen
US-2017305185-A1 · Oct 26, 2017 · US
Applying material extruding container
US-9532635-B2 · Jan 3, 2017 · US
Click-type applicator
US-9375068-B2 · Jun 28, 2016 · US
Writing implement
US-9315066-B2 · Apr 19, 2016 · US
Applying material extruding container
US-2015030371-A1 · Jan 29, 2015 · US