Method and Apparatus for a Tamper
US-2026076513-A1 · Mar 19, 2026 · US
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with stirrers performing an oscillatory, vibratory or shaking movement (B01F31/40, B01F31/42 take precedence)
with stirrers performing an oscillatory, vibratory or shaking movement (B01F31/40, B01F31/42 take precedence) · 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 | B01F31/44 |
| Official title | with stirrers performing an oscillatory, vibratory or shaking movement (B01F31/40, B01F31/42 take precedence) |
| Display label | with stirrers performing an oscillatory, vibratory or shaking movement (B01F31/40, B01F31/42 take precedence) |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for a tamper
US-12426741-B2 · Sep 30, 2025 · US
Concrete vibrator
US-12366077-B2 · Jul 22, 2025 · US
Containers including internal mixers and methods of use
US-2025214045-A1 · Jul 3, 2025 · US
Concrete vibrator for use in backpack and stationary configurations
US-12195982-B2 · Jan 14, 2025 · US
Concrete vibrator for use in a briefcase configuration
US-12129673-B2 · Oct 29, 2024 · US
Flow disturbance apparatus and air conditioner comprising the same
US-11859883-B2 · Jan 2, 2024 · US
Method and Apparatus for a Tamper
US-2023165407-A1 · Jun 1, 2023 · US
Concrete vibrator
US-2022389726-A1 · Dec 8, 2022 · US
Flow disturbance apparatus and air conditioner comprising the same
US-2022307743-A1 · Sep 29, 2022 · US
Concrete vibrator
US-2022290451-A1 · Sep 15, 2022 · US
Flow disturbance apparatus and air conditioner comprising the same
US-11365917-B2 · Jun 21, 2022 · US
Vessel rack, agitator, and fine particle measurement apparatus
US-11338259-B2 · May 24, 2022 · US
Flow disturbance apparatus and air conditioner comprising the same
US-2021404672-A1 · Dec 30, 2021 · US
Concrete vibrator
US-2021148126-A1 · May 20, 2021 · US
Sprayer hopper shaker
US-10857561-B2 · Dec 8, 2020 · US
Sample dispensing apparatus and automatic analyzer including the same
US-10309979-B2 · Jun 4, 2019 · US
Vessel rack, agitator, and fine particle measurement apparatus
US-2019070573-A1 · Mar 7, 2019 · US
Sprayer hopper shaker
US-2018207666-A1 · Jul 26, 2018 · US
Sample dispensing apparatus and automatic analyzer including the same
US-2018038882-A1 · Feb 8, 2018 · US