Electrochemical Metal Removal
US-2024325976-A1 · Oct 3, 2024 · US
with bipolar membranes; Water splitting
with bipolar membranes; Water splitting · 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 | B01D61/445 |
| Official title | {with bipolar membranes; Water splitting} |
| Display label | with bipolar membranes; Water splitting |
| Total patents | 236 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 9 |
| 2017 | 24 |
| 2018 | 27 |
| 2019 | 22 |
| 2020 | 23 |
| 2021 | 19 |
| 2022 | 13 |
| 2023 | 22 |
| 2024 | 29 |
| 2025 | 28 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processing materials
US-2018339270-A1 · Nov 29, 2018 · US
Deionization filter device and water treatment device comprising deionization filter device
US-2018326356-A1 · Nov 15, 2018 · US
Array for processing materials
US-10105652-B2 · Oct 23, 2018 · US
Subsea equipment cleaning system and method
US-2018251386-A1 · Sep 6, 2018 · US
Ion pump
US-10058821-B2 · Aug 28, 2018 · US
Curable compositions and membranes
US-10046279-B2 · Aug 14, 2018 · US
Acidic gas recovery apparatus and acidic gas recovery method
US-10022665-B2 · Jul 17, 2018 · US
Ion processing device, ion chromatograph provided with the ion processing device, and eluent generator provided with the ion processing device
US-10005035-B2 · Jun 26, 2018 · US
Bipolar electrodialysis methods and systems
US-2018154312-A1 · Jun 7, 2018 · US
Method for producing lithium hydroxide and lithium carbonate
US-2018147531-A1 · May 31, 2018 · US
Subsea water processing system and associated methods
US-2018071686-A1 · Mar 15, 2018 · US
Building materials from an aqueous solution
US-2018072626-A1 · Mar 15, 2018 · US
Acidic gas recovery apparatus and acidic gas recovery method
US-2018056232-A1 · Mar 1, 2018 · US
Reconfigurable processing enclosures
US-2018016745-A1 · Jan 18, 2018 · US
Building materials from an aqueous solution
US-9862643-B2 · Jan 9, 2018 · US
Chemical extraction from an aqueous solution
US-2017342328-A1 · Nov 30, 2017 · US
Building materials from an aqueous solution
US-2017341982-A1 · Nov 30, 2017 · US
Processing materials
US-9816231-B2 · Nov 14, 2017 · US
Bipolar ion exchange sheet and manufacturing method therefor
US-2017320053-A1 · Nov 9, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D61/445?
- CPC B01D61/445 is the Cooperative Patent Classification code for “with bipolar membranes; Water splitting.”
- How many patents are filed under CPC B01D61/445 (with bipolar membranes; Water splitting)?
- Our database includes 236 publications tagged with this CPC code.
- Is patent activity under CPC B01D61/445 growing?
- Publication counts under this code: 29 in 2024 vs 28 in 2025 (latest complete years).