Writing instrument and writing part replacement unit
US-2025388041-A1 · Dec 25, 2025 · US
Protecting means, e.g. caps
Protecting means, e.g. caps · 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 | B43K23/08 |
| Official title | Protecting means, e.g. caps |
| Display label | Protecting means, e.g. caps |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Writing instrument
US-12325255-B2 · Jun 10, 2025 · US
Writing instrument
US-2025042194-A1 · Feb 6, 2025 · US
Rear-pressing anti-misoperation double-ended eyebrow pencil
US-2024335022-A1 · Oct 10, 2024 · US
Rear-pressing anti-misoperation double-ended eyebrow pencil
US-12108864-B1 · Oct 8, 2024 · US
Combination marker and eraser
US-12023954-B1 · Jul 2, 2024 · US
Internal pressure regulating marker pen
US-11964510-B2 · Apr 23, 2024 · US
Internal Pressure Regulating Marker Pen
US-2023102068-A1 · Mar 30, 2023 · US
Cosmetic applicator
US-11589665-B2 · Feb 28, 2023 · US
Internal pressure regulating marker pen
US-11524517-B2 · Dec 13, 2022 · US
Cosmetic applicator
US-2022061496-A1 · Mar 3, 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
Auditory stylus system
US-2021183400-A1 · Jun 17, 2021 · US
Pen
US-11027573-B2 · Jun 8, 2021 · US
Pen
US-2020282761-A1 · Sep 10, 2020 · 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
Stylus Holder
US-2020023670-A1 · Jan 23, 2020 · US
Container cap
US-10392170-B2 · Aug 27, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B43K23/08?
- CPC B43K23/08 is the Cooperative Patent Classification code for “Protecting means, e.g. caps.”
- How many patents are filed under CPC B43K23/08 (Protecting means, e.g. caps)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC B43K23/08 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).