Automatic washout system for a mixer vehicle
US-2025282080-A1 · Sep 11, 2025 · US
Charging, e.g. hoppers
Charging, e.g. hoppers · 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 | B28C5/4237 |
| Official title | {Charging, e.g. hoppers} |
| Display label | Charging, e.g. hoppers |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Concrete mixer vehicle with trainer cab
US-2025249818-A1 · Aug 7, 2025 · US
Concrete mixer vehicle
US-2025236049-A1 · Jul 24, 2025 · US
Automatic washout system for a mixer vehicle
US-12330339-B2 · Jun 17, 2025 · US
Concrete mixer vehicle with trainer cab
US-12311822-B2 · May 27, 2025 · US
Concrete mixer vehicle
US-12290959-B2 · May 6, 2025 · US
Concrete transport vehicle with drum lift apparatus
US-12233574-B2 · Feb 25, 2025 · US
Concrete mixer vehicle with trainer cab
US-2024367575-A1 · Nov 7, 2024 · US
Concrete drum modes
US-2024293958-A1 · Sep 5, 2024 · US
Chute for a mixer vehicle
US-2024239014-A1 · Jul 18, 2024 · US
Concrete drum modes
US-12011851-B2 · Jun 18, 2024 · US
Concrete drum modes
US-2023271347-A1 · Aug 31, 2023 · US
Mixer vehicle with concrete drum modes
US-11679529-B2 · Jun 20, 2023 · US
Mixer remote quality manager
US-2022388198-A1 · Dec 8, 2022 · US
Charge hopper with liner for concrete mixer
US-11440219-B2 · Sep 13, 2022 · US
Rotated concrete volume determination
US-11331829-B2 · May 17, 2022 · US
Automatic washout system for a mixer vehicle
US-2022111559-A1 · Apr 14, 2022 · US
Concrete mixer vehicle
US-2022072736-A1 · Mar 10, 2022 · US
Automatic washout system for a mixer vehicle
US-11260559-B2 · Mar 1, 2022 · US
Multi-function joystick for concrete mixer vehicle
US-11186009-B2 · Nov 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B28C5/4237?
- CPC B28C5/4237 is the Cooperative Patent Classification code for “Charging, e.g. hoppers.”
- How many patents are filed under CPC B28C5/4237 (Charging, e.g. hoppers)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC B28C5/4237 growing?
- Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).