Reusable notebook and methods thereof
US-12429958-B2 · Sep 30, 2025 · US
This page is not indexed by search engines while we improve data quality.
Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing implements B43K29/02, B43K29/18)
Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing implements B43K29/02, B43K29/18) · 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 | B43L19/00 |
| Official title | Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing implements B43K29/02, B43K29/18) |
| Display label | Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing implements B43K29/02, B43K29/18) |
| Total patents | 21 |
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 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reusable notebook including a sheet having a printed code and methods thereof
US-12314484-B2 · May 27, 2025 · US
Erasing tool
US-11787225-B2 · Oct 17, 2023 · US
Writing instrument
US-11766886-B2 · Sep 26, 2023 · US
Writing instrument
US-11766887-B2 · Sep 26, 2023 · US
Reusable notebook and methods thereof
US-2023139349-A1 · May 4, 2023 · US
Reusable notebook and methods thereof
US-2023125465-A1 · Apr 27, 2023 · US
Writing instrument
US-2022063323-A1 · Mar 3, 2022 · US
Writing instrument
US-2022063322-A1 · Mar 3, 2022 · US
Pen tip and writing tool equipped with the pen tip
US-2021316566-A1 · Oct 14, 2021 · US
Mechanical pencil with a side button and an eraser dispenser and a method of assembly
US-10668766-B2 · Jun 2, 2020 · US
Erasing tool
US-2020101787-A1 · Apr 2, 2020 · US
Eraser for dry erase boards
US-2019118573-A1 · Apr 25, 2019 · US
Manual applicator
US-10245879-B2 · Apr 2, 2019 · US
Mechanical pencil with side button and eraser dispenser and method of assembly
US-2019047320-A1 · Feb 14, 2019 · US
Erasing implement and writing implement provided with erasing implement
US-9994066-B2 · Jun 12, 2018 · US
An eraser and a toy building set with an eraser
US-2018015382-A1 · Jan 18, 2018 · US
Thermal eraser for tactile drawings
US-9403401-B2 · Aug 2, 2016 · US
Click-type applicator
US-9375068-B2 · Jun 28, 2016 · US
Display board assembly
US-9162516-B2 · Oct 20, 2015 · US