Metal oxide ceramic nanomaterials and methods of making and using same
US-9822039-B1 · Nov 21, 2017 · US
by forward osmosis
by forward osmosis · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F1/445 |
| Official title | {by forward osmosis} |
| Display label | by forward osmosis |
| Total patents | 323 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 29 |
| 2017 | 34 |
| 2018 | 37 |
| 2019 | 32 |
| 2020 | 29 |
| 2021 | 32 |
| 2022 | 24 |
| 2023 | 30 |
| 2024 | 26 |
| 2025 | 26 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water purifier
US-2017320721-A1 · Nov 9, 2017 · US
Composite Hollow Fiber Membrane Module and Manufacturing Method Therefor
US-2017266625-A1 · Sep 21, 2017 · US
Water treatment device and operating method for same
US-2017266622-A1 · Sep 21, 2017 · US
Water treatment system and working medium therefor
US-2017173532-A1 · Jun 22, 2017 · US
Forward osmosis apparatus and forward osmosis process
US-9630861-B2 · Apr 25, 2017 · US
Method for treatment and reuse of used water streams
US-9617173-B2 · Apr 11, 2017 · US
Pressurized forward osmosis process and system
US-9580337-B2 · Feb 28, 2017 · US
Thermo-responsive draw solute for forward osmosis and method for water desalination and purification using the same
US-9550728-B2 · Jan 24, 2017 · US
Composition, System, and Method for Treating Water Systems
US-2016354727-A1 · Dec 8, 2016 · US
Forward Osmosis Separation Processes
US-2016340212-A1 · Nov 24, 2016 · US
Draw solute for forward osmosis, forward osmosis water treatment device, and forward osmosis method for water treatment
US-9492789-B2 · Nov 15, 2016 · US
Forward osmosis water treatment device
US-2016325234-A1 · Nov 10, 2016 · US
Osmosis
US-2016297693-A1 · Oct 13, 2016 · US
Draw solutes including phosphonate ionic oligomers, forward osmotic water treating apparatus, and methods using the same
US-2016288053-A1 · Oct 6, 2016 · US
Flow path member and forward osmosis membrane element
US-2016279575-A1 · Sep 29, 2016 · US
Brine mining process
US-2016272513-A1 · Sep 22, 2016 · US
Thermosensitive copolymers, forward osmosis water treatment devices including the same, and methods of producing and using the same
US-9447239-B2 · Sep 20, 2016 · US
Osmotic desalination process
US-9433901-B2 · Sep 6, 2016 · US
Forward osmosis device, and forward osmosis method
US-2016236951-A1 · Aug 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/445?
- CPC C02F1/445 is the Cooperative Patent Classification code for “by forward osmosis.”
- How many patents are filed under CPC C02F1/445 (by forward osmosis)?
- Our database includes 323 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/445 growing?
- Publication counts under this code: 26 in 2024 vs 26 in 2025 (latest complete years).