Writing instrument
US-12397579-B2 · Aug 26, 2025 · US
for low viscosity liquid ink · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B43K7/01 |
| Official title | for low viscosity liquid ink |
| Display label | for low viscosity liquid ink |
| Total patents | 14 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12397579-B2 · Aug 26, 2025 · US
US-2025065665-A1 · Feb 27, 2025 · US
US-12209192-B2 · Jan 28, 2025 · US
US-2024309230-A1 · Sep 19, 2024 · US
US-2024209225-A1 · Jun 27, 2024 · US
US-2023167316-A1 · Jun 1, 2023 · US
US-2022169874-A1 · Jun 2, 2022 · US
US-2020255680-A1 · Aug 13, 2020 · US
US-2020101786-A1 · Apr 2, 2020 · US
US-9873806-B2 · Jan 23, 2018 · US
US-9636940-B2 · May 2, 2017 · US
US-9290036-B2 · Mar 22, 2016 · US
US-2015298489-A1 · Oct 22, 2015 · US
US-2015093176-A1 · Apr 2, 2015 · US