Liquid ejection head
US-10160204-B2 · Dec 25, 2018 · US
by pressure
by pressure · 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 | B41J2/03 |
| Official title | by pressure |
| Display label | by pressure |
| Total patents | 198 |
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 | 10 |
| 2016 | 10 |
| 2017 | 23 |
| 2018 | 32 |
| 2019 | 17 |
| 2020 | 27 |
| 2021 | 26 |
| 2022 | 17 |
| 2023 | 17 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid discharge device and printing apparatus
US-2018345660-A1 · Dec 6, 2018 · US
Piezoelectric device, liquid discharging head, and liquid discharging apparatus
US-2018339515-A1 · Nov 29, 2018 · US
Apparatus and Method for Control of Print Gap
US-2018326767-A1 · Nov 15, 2018 · US
Fluid ejection device
US-10105946-B2 · Oct 23, 2018 · US
Printing apparatus and control method
US-2018281382-A1 · Oct 4, 2018 · US
Flow meter and use thereof in a printer
US-10065427-B2 · Sep 4, 2018 · US
Inkjet printing apparatus
US-2018236797-A1 · Aug 23, 2018 · US
Modular printhead assembly with rail assembly having upstream and downstream rod segments
US-10052868-B1 · Aug 21, 2018 · US
Apparatus and method for control of print gap
US-10029497-B2 · Jul 24, 2018 · US
Liquid discharge apparatus and liquid discharge method
US-9994048-B2 · Jun 12, 2018 · US
Fluid discharge apparatus and fluid discharge method
US-2018085777-A1 · Mar 29, 2018 · US
Inkjet head and method for manufacturing inkjet head
US-2018086072-A1 · Mar 29, 2018 · US
Panel forming
US-2018080232-A1 · Mar 22, 2018 · US
Liquid discharge apparatus and liquid discharge method through oblique irradiation of liquid drops, and changing of flying direction of the liquid droplets
US-9919514-B2 · Mar 20, 2018 · US
Valve
US-9878556-B2 · Jan 30, 2018 · US
Fluid ejection device
US-2018022105-A1 · Jan 25, 2018 · US
Panel forming
US-9840849-B2 · Dec 12, 2017 · US
Liquid ejection head
US-2017334191-A1 · Nov 23, 2017 · US
Liquid ejecting apparatus and liquid refilling container
US-2017326882-A1 · Nov 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B41J2/03?
- CPC B41J2/03 is the Cooperative Patent Classification code for “by pressure.”
- How many patents are filed under CPC B41J2/03 (by pressure)?
- Our database includes 198 publications tagged with this CPC code.
- Is patent activity under CPC B41J2/03 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).