Air conditioner and air purifier including electrostatic precipitator
US-2025271159-A1 · Aug 28, 2025 · US
synthetic resins
synthetic resins · 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 | B03C3/64 |
| Official title | synthetic resins |
| Display label | synthetic resins |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air conditioner and air purifier including electrostatic precipitator
US-2025271160-A1 · Aug 28, 2025 · US
Air conditioner and method for controlling the same
US-12352467-B2 · Jul 8, 2025 · US
Method for manufacturing electrostatic filter and film for pathogen inactivation
US-2025099977-A1 · Mar 27, 2025 · US
Dust collection sheet and electrostatic precipitator
US-2024351049-A1 · Oct 24, 2024 · US
Filter with electrically-conductive wrap
US-12076668-B2 · Sep 3, 2024 · US
Water droplets collection device from airflow using electrostatic separators
US-12066258-B2 · Aug 20, 2024 · US
Unit for electrostatic filter and electrostatic filter
US-12059690-B2 · Aug 13, 2024 · US
Membrane for collecting airborne particles
US-2023191426-A1 · Jun 22, 2023 · US
Air conditioner and method for controlling the same
US-2023175718-A1 · Jun 8, 2023 · US
Nano surfaces on smoke particle electrodes
US-2023133254-A1 · May 4, 2023 · US
Hybrid composite discharge electrode for use in an electrostatic precipitator
US-11623227-B2 · Apr 11, 2023 · US
Filter with electrically-conductive wrap
US-2023025622-A1 · Jan 26, 2023 · US
Charging apparatus and precipitator
US-11331678-B2 · May 17, 2022 · US
Air cleaning apparatus
US-11229718-B2 · Jan 25, 2022 · US
Water droplets collection device from airflow using electrostatic separators
US-2021389063-A1 · Dec 16, 2021 · US
Air vent
US-11103881-B2 · Aug 31, 2021 · US
Unit for electrostatic filter and electrostatic filter
US-2021229111-A1 · Jul 29, 2021 · US
Electret and electret filter
US-10940415-B2 · Mar 9, 2021 · US
Electric dust collection device and manufacturing method therefor
US-10933431-B2 · Mar 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03C3/64?
- CPC B03C3/64 is the Cooperative Patent Classification code for “synthetic resins.”
- How many patents are filed under CPC B03C3/64 (synthetic resins)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC B03C3/64 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).