Batch-type apparatus for filtering
US-12576351-B2 · Mar 17, 2026 · US
Flow control valves; Damping or calibrated passages
Flow control valves; Damping or calibrated passages · 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 | B01D27/108 |
| Official title | {Flow control valves; Damping or calibrated passages} |
| Display label | Flow control valves; Damping or calibrated passages |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve Arrangement for a Filtration System
US-2025303326-A1 · Oct 2, 2025 · US
Quick Change Oil Filter
US-2025235804-A1 · Jul 24, 2025 · US
Quick change oil filter
US-12303813-B2 · May 20, 2025 · US
Filter cartridge and filter having same
US-2024375026-A1 · Nov 14, 2024 · US
Batch-type apparatus for filtering
US-2023364537-A1 · Nov 16, 2023 · US
Fluid filtration system with single use filter and method of using same for automated filter conditioning
US-2023211260-A1 · Jul 6, 2023 · US
Leak detection assembly for use with a filter assembly for a refrigerator appliance
US-11504657-B2 · Nov 22, 2022 · US
Quick Change Oil Filter
US-2022249989-A1 · Aug 11, 2022 · US
Quick change oil filter
US-11351488-B2 · Jun 7, 2022 · US
Filtering device and control system
US-11154797-B2 · Oct 26, 2021 · US
Disposable filter including an integrated sensor assembly
US-11097210-B2 · Aug 24, 2021 · US
Filter assembly with leak detection features
US-10926206-B1 · Feb 23, 2021 · US
Leak detection assembly for use with a filter assembly for a refrigerator appliance
US-2020306672-A1 · Oct 1, 2020 · US
Passive fluid treatment assembly
US-10773979-B2 · Sep 15, 2020 · US
Passive fluid treatment assembly
US-2020216340-A1 · Jul 9, 2020 · US
Filtering device and control system
US-2020147523-A1 · May 14, 2020 · US
Blood filtering device
US-10350516-B2 · Jul 16, 2019 · US
Filter system including integrated diagnostics
US-2019083909-A1 · Mar 21, 2019 · US
Disposable filter including an integrated sensor assembly
US-2019083912-A1 · Mar 21, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D27/108?
- CPC B01D27/108 is the Cooperative Patent Classification code for “Flow control valves; Damping or calibrated passages.”
- How many patents are filed under CPC B01D27/108 (Flow control valves; Damping or calibrated passages)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC B01D27/108 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).