Method of manufacturing an isolated porous material and an isolated porous material
US-2025327201-A1 · Oct 23, 2025 · US
Separating compounds
Separating compounds · 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 | C25D1/22 |
| Official title | Separating compounds |
| Display label | Separating compounds |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 11 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cobalt-tungsten alloy and method of fabricating the same
US-12203154-B2 · Jan 21, 2025 · US
Controlling porosity of an interference lithography process by fine tuning exposure time
US-11914304-B2 · Feb 27, 2024 · US
Cobalt-tungsten alloy and method of fabricating the same
US-2024026496-A1 · Jan 25, 2024 · US
Roll stamp for imprint device, and manufacturing method therefor
US-11656545-B2 · May 23, 2023 · US
Method for producing a mold
US-2023147420-A1 · May 11, 2023 · US
Electroforming master, method for producing electroforming master, and method for producing electroforming material
US-2023092396-A1 · Mar 23, 2023 · US
Nickel-cobalt material and method of forming
US-11591684-B2 · Feb 28, 2023 · US
Method and apparatus for mass production of AR diffractive waveguides
US-11577480-B2 · Feb 14, 2023 · US
Controlling porosity of an interference lithography process by fine tuning exposure time
US-2023045339-A1 · Feb 9, 2023 · US
Nickel-cobalt material and method of forming
US-2022049336-A1 · Feb 17, 2022 · US
Cobalt-tungsten alloy and method of fabricating the same
US-2021371959-A1 · Dec 2, 2021 · US
Conductive micro pin
US-11101232-B2 · Aug 24, 2021 · US
Nickel-cobalt material and method of forming
US-11053577-B2 · Jul 6, 2021 · US
Method and apparatus for mass production of ar diffractive waveguides
US-2021197507-A1 · Jul 1, 2021 · US
Roll stamp for imprint device, and manufacturing method therefor
US-2020355998-A1 · Nov 12, 2020 · US
Nanowire bundle array, membrane including the same, method of manufacturing the membrane, and steam generator using the membrane
US-10746438-B2 · Aug 18, 2020 · US
Nickel-cobalt material and method of forming
US-2020190650-A1 · Jun 18, 2020 · US
Cathode for thin film microbattery
US-10686164-B2 · Jun 16, 2020 · US
Method of forming a homogeneous solid metallic anode for a thin film microbattery
US-10622590-B2 · Apr 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25D1/22?
- CPC C25D1/22 is the Cooperative Patent Classification code for “Separating compounds.”
- How many patents are filed under CPC C25D1/22 (Separating compounds)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC C25D1/22 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).