Screen device
US-2026061460-A1 · Mar 5, 2026 · US
with unbalanced weights
with unbalanced weights · 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 | B07B1/284 |
| Official title | {with unbalanced weights} |
| Display label | with unbalanced weights |
| Total patents | 35 |
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 | 3 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Screen device
US-2026061461-A1 · Mar 5, 2026 · US
Vibration monitoring and visualisation system
US-2025360540-A1 · Nov 27, 2025 · US
Exciter apparatus
US-2025229296-A1 · Jul 17, 2025 · US
System and method for locking a weight assembly
US-11925958-B2 · Mar 12, 2024 · US
Vibration generating mechanism for a vibrating screen box
US-11638932-B2 · May 2, 2023 · US
Eccentric vibrator systems and methods
US-11478823-B2 · Oct 25, 2022 · US
System and method for locking a weight assembly
US-2022280975-A1 · Sep 8, 2022 · US
Vibration generating mechanism for a vibrating screen box
US-2022212232-A1 · Jul 7, 2022 · US
Operation monitoring system for sifting device
US-2022161297-A1 · May 26, 2022 · US
Vibration generating mechanism for a vibrating screen box
US-11285511-B2 · Mar 29, 2022 · US
Adjustable rotating weight
US-11123769-B2 · Sep 21, 2021 · US
Eccentric vibrator systems and methods
US-2021283659-A1 · Sep 16, 2021 · US
Adjustable vibratory drive system
US-11065647-B2 · Jul 20, 2021 · US
Eccentric vibrator systems and methods
US-11052426-B2 · Jul 6, 2021 · US
Vibratory material classifier
US-10926294-B2 · Feb 23, 2021 · US
Screening system with vibration-node-arranged vibration systems
US-2020254489-A1 · Aug 13, 2020 · US
Vibratory system comprising shaft lines, and a corresponding machine and method
US-10569304-B2 · Feb 25, 2020 · US
Adjustable Rotating Weight
US-2020047217-A1 · Feb 13, 2020 · US
Adjustable vibratory drive system
US-2019344311-A1 · Nov 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B07B1/284?
- CPC B07B1/284 is the Cooperative Patent Classification code for “with unbalanced weights.”
- How many patents are filed under CPC B07B1/284 (with unbalanced weights)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC B07B1/284 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).