Separation process
US-2024287118-A1 · Aug 29, 2024 · US
Microfiltration
Microfiltration · 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 | B01D61/147 |
| Official title | {Microfiltration} |
| Display label | Microfiltration |
| Total patents | 704 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 53 |
| 2016 | 50 |
| 2017 | 41 |
| 2018 | 63 |
| 2019 | 70 |
| 2020 | 72 |
| 2021 | 75 |
| 2022 | 80 |
| 2023 | 63 |
| 2024 | 73 |
| 2025 | 55 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Crosslinked ion-exchange materials, related methods, and related articles
US-2024050906-A1 · Feb 15, 2024 · US
Method for reducing the bacterial content of a food medium containing lipid droplets
US-9491954-B2 · Nov 15, 2016 · US
Method for removing bacterial contaminants from saccharified solution and fermentation system
US-9481860-B2 · Nov 1, 2016 · US
Separator
US-2016304358-A1 · Oct 20, 2016 · US
Microporous Polyamide-Imide Membranes
US-2016256836-A1 · Sep 8, 2016 · US
Methods of producing influenza vaccine compositions
US-2016051660-A1 · Feb 25, 2016 · US
Method of producing sugar solution
US-2015376669-A1 · Dec 31, 2015 · US
Compact spiral-wound filter elements, modules and systems
US-2015375173-A1 · Dec 31, 2015 · US
Organic/inorganic hybrid compound for fouling resistance, membrane including the same for fouling resistance, and method of preparing membrane for fouling resistance
US-9221019-B2 · Dec 29, 2015 · US
Method of manufacturing polymer for lithography, method of manufacturing resist composition, and method of manufacturing substrate having pattern
US-9223213-B2 · Dec 29, 2015 · US
Method for fractionating soluble fractions of peas, fraction thus obtained and upgrade thereof
US-2015368293-A1 · Dec 24, 2015 · US
Water reuse system and method
US-2015360983-A1 · Dec 17, 2015 · US
Method for producing resist composition
US-9207535-B2 · Dec 8, 2015 · US
Packed bed bioreactor for biofouling control of reverse osmosis and nanofiltration membranes
US-9206059-B2 · Dec 8, 2015 · US
Membranes having antibiotic and hydrophilic properties and preparation method thereof
US-2015343387-A1 · Dec 3, 2015 · US
Electrostatic-assisted fiber spinning method and production of highly aligned and packed hollow fiber assembly and membrane
US-2015342719-A1 · Dec 3, 2015 · US
Method for removing bacterial contaminants from saccharified solution and fermentation system
US-2015337253-A1 · Nov 26, 2015 · US
Economical process for the isolation of functional protein from plants
US-2015335043-A1 · Nov 26, 2015 · US
Filtration systems and membranes with enhanced flux and method for their preparation
US-2015328588-A1 · Nov 19, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D61/147?
- CPC B01D61/147 is the Cooperative Patent Classification code for “Microfiltration.”
- How many patents are filed under CPC B01D61/147 (Microfiltration)?
- Our database includes 704 publications tagged with this CPC code.
- Is patent activity under CPC B01D61/147 growing?
- Publication counts under this code: 73 in 2024 vs 55 in 2025 (latest complete years).