Inkjet recorder and method of detecting malfunction
US-2018370227-A1 · Dec 27, 2018 · US
detecting current
detecting current · 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 | B41J2/04555 |
| Official title | {detecting current} |
| Display label | detecting current |
| Total patents | 245 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 22 |
| 2017 | 19 |
| 2018 | 13 |
| 2019 | 18 |
| 2020 | 30 |
| 2021 | 43 |
| 2022 | 19 |
| 2023 | 29 |
| 2024 | 18 |
| 2025 | 17 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid ejection head and liquid ejection apparatus
US-2018361734-A1 · Dec 20, 2018 · US
Inkjet head and inkjet printer
US-10131141-B2 · Nov 20, 2018 · US
Ink-jet recording apparatus
US-10086608-B2 · Oct 2, 2018 · US
Method to reduce an increased viscosity in an ink print head of an ink printer
US-10059095-B2 · Aug 28, 2018 · US
Detect circuits for print heads
US-2018170034-A1 · Jun 21, 2018 · US
Fluid level sensor and related methods
US-2018162137-A1 · Jun 14, 2018 · US
Evaluating print head nozzle condition
US-9956763-B2 · May 1, 2018 · US
Ink-jet recording apparatus
US-2018072057-A1 · Mar 15, 2018 · US
Inkjet Recording Device
US-2018050535-A1 · Feb 22, 2018 · US
Control apparatus and control method of the same
US-9868282-B2 · Jan 16, 2018 · US
Nozzle condition evaluation
US-2017361603-A1 · Dec 21, 2017 · US
Impedance measurements at time instants
US-2017348968-A1 · Dec 7, 2017 · US
Constant current mode firing circuit for thermal inkjet-printing nozzle
US-9815276-B2 · Nov 14, 2017 · US
Fluid level sensor with combined capacitance and conductance
US-9789697-B1 · Oct 17, 2017 · US
Inkjet head and inkjet printer
US-2017291413-A1 · Oct 12, 2017 · US
Determining a time instant for an impedance measurement
US-9776395-B2 · Oct 3, 2017 · US
Nozzle condition evaluation
US-9776394-B2 · Oct 3, 2017 · US
Constant current mode firing circuit for thermal inkjet-printing nozzle
US-9770901-B2 · Sep 26, 2017 · US
Determining an issue in an inkjet nozzle with impedance measurements
US-9701116-B2 · Jul 11, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B41J2/04555?
- CPC B41J2/04555 is the Cooperative Patent Classification code for “detecting current.”
- How many patents are filed under CPC B41J2/04555 (detecting current)?
- Our database includes 245 publications tagged with this CPC code.
- Is patent activity under CPC B41J2/04555 growing?
- Publication counts under this code: 18 in 2024 vs 17 in 2025 (latest complete years).