Writing instrument
US-12397579-B2 · Aug 26, 2025 · US
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Nib holders (holders for continuously adjustable nibs B43K17/00)
Nib holders (holders for continuously adjustable nibs B43K17/00) · 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 | B43K3/00 |
| Official title | Nib holders (holders for continuously adjustable nibs B43K17/00) |
| Display label | Nib holders (holders for continuously adjustable nibs B43K17/00) |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Writing instrument
US-2025065665-A1 · Feb 27, 2025 · US
Fiber-bundled part for writing instruments, and pen tip and writing instrument using the fiber-bundled part
US-12187068-B2 · Jan 7, 2025 · US
Thermoplastic resin composition and use thereof
US-2024376298-A1 · Nov 14, 2024 · US
Fiber-bundled part for writing instruments, and pen tip and writing instrument using the fiber-bundled part
US-2023406029-A1 · Dec 21, 2023 · US
Ink reservoir unit for writing instruments and writing instruments
US-11679618-B2 · Jun 20, 2023 · US
Nib for writing felt pen
US-11607902-B2 · Mar 21, 2023 · US
Writing implement
US-11427027-B2 · Aug 30, 2022 · US
Ink reservoir unit for writing instruments and writing instruments
US-2022176728-A1 · Jun 9, 2022 · US
Refill for writing implements and writing implements using the same
US-11135868-B2 · Oct 5, 2021 · US
Writing implement
US-2021237502-A1 · Aug 5, 2021 · US
Nib for writing felt pen
US-2021122182-A1 · Apr 29, 2021 · US
Writing instrument
US-10507684-B2 · Dec 17, 2019 · US
Refill for writing implements and writing implements using the same
US-2019337323-A1 · Nov 7, 2019 · US
Writing instrument
US-2018370274-A1 · Dec 27, 2018 · US
Ergonomic and versatile writing instrument
US-9610797-B2 · Apr 4, 2017 · US
Writing instrument with simplified assembly
US-9586433-B2 · Mar 7, 2017 · US
Writing instrument with erasing member
US-9409438-B2 · Aug 9, 2016 · US