Methods of inhibiting fouling in liquid systems
US-11186499-B2 · Nov 30, 2021 · US
Controlling the filtration
Controlling the filtration · 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 | B01D37/04 |
| Official title | Controlling the filtration |
| Display label | Controlling the filtration |
| Total patents | 119 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 12 |
| 2020 | 17 |
| 2021 | 8 |
| 2022 | 16 |
| 2023 | 16 |
| 2024 | 7 |
| 2025 | 13 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process fluid monitoring system
US-2021294361-A1 · Sep 23, 2021 · US
Sorbent manifold for a dialysis system
US-2021252203-A1 · Aug 19, 2021 · US
Sorbent manifold for a dialysis system
US-11033667-B2 · Jun 15, 2021 · US
Systems and methods for optimizing ventilation, filtration, and conditioning schemes for buildings
US-2021010693-A1 · Jan 14, 2021 · US
Air quality control and disinfection system
US-2021010701-A1 · Jan 14, 2021 · US
Water purifier
US-10874986-B2 · Dec 29, 2020 · US
Dual pumping arrangement for a hollow fiber filter
US-2020398197-A1 · Dec 24, 2020 · US
Filtration process and assembly
US-2020398186-A1 · Dec 24, 2020 · US
Plunger pumping arrangement for a hollow fiber filter
US-2020398198-A1 · Dec 24, 2020 · US
Filter loading
US-10871001-B2 · Dec 22, 2020 · US
Multi-phase pumping system with self-purging filtration
US-10821383-B2 · Nov 3, 2020 · US
Plunger pumping arrangement for a hollow fiber filter
US-10799816-B2 · Oct 13, 2020 · US
Dual pumping arrangement for a hollow fiber filter
US-10792594-B2 · Oct 6, 2020 · US
Use of polymers comprising thermoplastic polymers as filtration aids and/or stabilising agent
US-10744434-B2 · Aug 18, 2020 · US
Water treatment device
US-10723642-B2 · Jul 28, 2020 · US
Recirculating fluid filtration system
US-2020222616-A1 · Jul 16, 2020 · US
Filter method for filtering a fluid and adjusting a pre-treatment agent based on a process variable
US-10668415-B2 · Jun 2, 2020 · US
Chemical liquid purification method and chemical liquid
US-2020164294-A1 · May 28, 2020 · US
Systems and methods for servicing a fluid filtration system
US-10661208-B2 · May 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D37/04?
- CPC B01D37/04 is the Cooperative Patent Classification code for “Controlling the filtration.”
- How many patents are filed under CPC B01D37/04 (Controlling the filtration)?
- Our database includes 119 publications tagged with this CPC code.
- Is patent activity under CPC B01D37/04 growing?
- Publication counts under this code: 7 in 2024 vs 13 in 2025 (latest complete years).