Printhead for a 3D printer and a method for filling a printhead
US-12558842-B2 · Feb 24, 2026 · US
at a location before or in the feed unit, e.g. influencing the material in the hopper · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29C48/143 |
| Official title | {at a location before or in the feed unit, e.g. influencing the material in the hopper} |
| Display label | at a location before or in the feed unit, e.g. influencing the material in the hopper |
| Total patents | 22 |
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 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12558842-B2 · Feb 24, 2026 · US
US-12508769-B2 · Dec 30, 2025 · US
US-2025073977-A1 · Mar 6, 2025 · US
US-2025054690-A1 · Feb 13, 2025 · US
US-2024367362-A1 · Nov 7, 2024 · US
US-2024217175-A1 · Jul 4, 2024 · US
US-2024190069-A1 · Jun 13, 2024 · US
US-11186025-B2 · Nov 30, 2021 · US
US-11072690-B2 · Jul 27, 2021 · US
US-10988328-B2 · Apr 27, 2021 · US
US-2020357567-A1 · Nov 12, 2020 · US
US-2020277147-A1 · Sep 3, 2020 · US
US-10744696-B2 · Aug 18, 2020 · US
US-2019381713-A1 · Dec 19, 2019 · US
US-10213949-B2 · Feb 26, 2019 · US
US-2018346662-A1 · Dec 6, 2018 · US
US-10144598-B2 · Dec 4, 2018 · US
US-2018236703-A1 · Aug 23, 2018 · US
US-2018079604-A1 · Mar 22, 2018 · US
US-2016297625-A1 · Oct 13, 2016 · US