Filter medium, manufacturing method therefor, and filter unit comprising same
US-11364470-B2 · Jun 21, 2022 · US
by agglomeration of particles
by agglomeration of particles · 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 | B01D67/0004 |
| Official title | {by agglomeration of particles} |
| Display label | by agglomeration of particles |
| Total patents | 72 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 8 |
| 2017 | 10 |
| 2018 | 12 |
| 2019 | 7 |
| 2020 | 13 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nano wire microporous structure
US-11213791-B2 · Jan 4, 2022 · US
Method for preparing a membrane from fibril cellulose and fibril, cellulose membrane
US-11207803-B2 · Dec 28, 2021 · US
Ion exchange membrane and method for manufacturing same
US-11192098-B2 · Dec 7, 2021 · US
Laser-sintered filter, method for producing the filter, and method for ensuring fluid flow
US-2021316240-A1 · Oct 14, 2021 · US
Micro or nano porous membrane, manufacturing method of same, porous resin membrane complex, and filter element
US-2021260536-A1 · Aug 26, 2021 · US
Continuous lateral pore grading for scalable efficiency of membranes in electrochemical applications
US-2021162351-A1 · Jun 3, 2021 · US
Graphene-ceramic composite membrane for hydrogen separation membranes
US-10899613-B2 · Jan 26, 2021 · US
Air treatment article
US-10842900-B2 · Nov 24, 2020 · US
Nanostructured fibrous membranes for membrane distillation
US-2020316504-A1 · Oct 8, 2020 · US
Nanofiber for filter medium, filter medium comprising same, method for producing same, and filter unit comprising same
US-10766000-B2 · Sep 8, 2020 · US
Gas filter
US-10751662-B2 · Aug 25, 2020 · US
Removal of microorganisms from fluid samples using nanofiber filtration media
US-10722602-B2 · Jul 28, 2020 · US
Zwitterionic fiber membranes
US-10710026-B2 · Jul 14, 2020 · US
Filter medium, manufacturing method therefor, and filter unit comprising same
US-2020215490-A1 · Jul 9, 2020 · US
Nanostructured fibrous membranes for membrane distillation
US-10702815-B2 · Jul 7, 2020 · US
Method of magnetically aligning and crystallizing membrane proteins
US-10688442-B2 · Jun 23, 2020 · US
Method of purifying a biological material of interest in a sample using nanofiber ultrafiltration membranes operated in tangential flow filtration mode
US-10675588-B2 · Jun 9, 2020 · US
Process and device for manufacturing a laminated material comprising a fibrillated cellulose layer
US-10618015-B2 · Apr 14, 2020 · US
Method for preparing microstructure arrays on the surface of thin film material
US-2020086277-A1 · Mar 19, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D67/0004?
- CPC B01D67/0004 is the Cooperative Patent Classification code for “by agglomeration of particles.”
- How many patents are filed under CPC B01D67/0004 (by agglomeration of particles)?
- Our database includes 72 publications tagged with this CPC code.
- Is patent activity under CPC B01D67/0004 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).