Method for extracting microvesicles from biological sample
US-12551828-B2 · Feb 17, 2026 · US
using flocculating agents
using flocculating agents · 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 | B01D37/03 |
| Official title | using flocculating agents |
| Display label | using flocculating agents |
| Total patents | 27 |
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 | 3 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lubricant for filtration containing onium ions
US-2025235805-A1 · Jul 24, 2025 · US
Device for providing and treating a liquid, filter bag, method for producing a filter bag and use
US-2025073619-A1 · Mar 6, 2025 · US
Method and process arrangement for improving a separation and solid product
US-2023279448-A1 · Sep 7, 2023 · US
Method for extracting microvesicles from biological sample
US-2022111318-A1 · Apr 14, 2022 · US
Pigment for paper and coatings
US-10988621-B2 · Apr 27, 2021 · 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
Alternative additives to enhance slurry dewatering
US-10457584-B2 · Oct 29, 2019 · US
Pigment for paper and coatings
US-2019233653-A1 · Aug 1, 2019 · US
Pigment for paper and coatings
US-10253186-B2 · Apr 9, 2019 · US
Apparatus and method for treating slurries
US-10227248-B2 · Mar 12, 2019 · US
Alternative additives to enhance slurry dewatering
US-2018162763-A1 · Jun 14, 2018 · US
Alternative additives to enhance slurry dewatering
US-9896366-B2 · Feb 20, 2018 · US
Filter medium, process for producing filter medium, filtration device, method for operating filtration device, and filtration system
US-2017348618-A1 · Dec 7, 2017 · US
Pigment for paper and coatings
US-2017260396-A1 · Sep 14, 2017 · US
Reversible Microcapsule Filter Cake
US-2017189881-A1 · Jul 6, 2017 · US
Filter method for filtering a fluid and filtering device for filtering a fluid
US-2017182439-A1 · Jun 29, 2017 · US
Filter apparatus for recycling water of a washing machine having self-cleaning function and washing machine
US-2017159228-A1 · Jun 8, 2017 · US
Reversible microcapsule filter cake
US-9656233-B2 · May 23, 2017 · US
Flocculation apparatus of washing machine with self-cleaning function, and washing machine
US-2017137987-A1 · May 18, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D37/03?
- CPC B01D37/03 is the Cooperative Patent Classification code for “using flocculating agents.”
- How many patents are filed under CPC B01D37/03 (using flocculating agents)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC B01D37/03 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2025 (latest complete years).