Metal air filter
US-12194476-B2 · Jan 14, 2025 · US
Catch- space electrodes, e.g. slotted-box form
Catch- space electrodes, e.g. slotted-box form · 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 | B03C3/51 |
| Official title | Catch- space electrodes, e.g. slotted-box form |
| Display label | Catch- space electrodes, e.g. slotted-box form |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 7 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air conditioning apparatus
US-2024359125-A1 · Oct 31, 2024 · US
Dust collection unit, and electric dust collection apparatus comprising same
US-2024335841-A1 · Oct 10, 2024 · US
Filter with electrically-conductive wrap
US-12076668-B2 · Sep 3, 2024 · US
Air conditioning apparatus
US-12070715-B2 · Aug 27, 2024 · US
Dust collection unit for electric precipitator and electric precipitator including same
US-2024278259-A1 · Aug 22, 2024 · US
Electrostatic dust filter
US-11958059-B2 · Apr 16, 2024 · US
Electrostatic charging air cleaning device and collection electrode
US-11958061-B2 · Apr 16, 2024 · US
Air conditioning apparatus
US-2023285888-A1 · Sep 14, 2023 · US
Air conditioning apparatus
US-11673088-B2 · Jun 13, 2023 · US
Electrostatic charging air cleaning device and collection electrode
US-2023047164-A1 · Feb 16, 2023 · US
Filter with electrically-conductive wrap
US-2023025622-A1 · Jan 26, 2023 · US
Electrostatic charging air cleaning device and collection electrode
US-11524304-B2 · Dec 13, 2022 · US
Metal air filter
US-2022371027-A1 · Nov 24, 2022 · US
Electrostatic dust filter
US-2022048045-A1 · Feb 17, 2022 · US
Electrostatic precipitator
US-2022040706-A1 · Feb 10, 2022 · US
Filter
US-11117140-B2 · Sep 14, 2021 · US
Electronic dust collecting apparatus and method of manufacturing dust collector
US-10994283-B2 · May 4, 2021 · US
Electrostatic charging air cleaning device and collection electrode
US-2020197953-A1 · Jun 25, 2020 · US
Filter
US-2019344288-A1 · Nov 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03C3/51?
- CPC B03C3/51 is the Cooperative Patent Classification code for “Catch- space electrodes, e.g. slotted-box form.”
- How many patents are filed under CPC B03C3/51 (Catch- space electrodes, e.g. slotted-box form)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC B03C3/51 growing?
- Publication counts under this code: 7 in 2024 vs 1 in 2025 (latest complete years).