Photonic crystal micropatterns and anti-counterfeiting films, methods of making, and methods of use
US-12552909-B2 · Feb 17, 2026 · US
Elimination of an inorganic solid phase
Elimination of an inorganic solid phase · 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 | C08J2201/044 |
| Official title | Elimination of an inorganic solid phase |
| Display label | Elimination of an inorganic solid phase |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solvent free process for manufacturing membranes
US-12448493-B2 · Oct 21, 2025 · US
Composition for producing porous film, method for producing porous film, and porous film
US-2024270919-A1 · Aug 15, 2024 · US
Polymeric crystalline composition, method of manufacturing same and uses thereof
US-2024209174-A1 · Jun 27, 2024 · US
Porous film
US-2024084091-A1 · Mar 14, 2024 · US
Process for preparing a polypropylene-based sponge-like porous thin film
US-11883792-B1 · Jan 30, 2024 · US
Method for producing porous film, method for producing composition for producing porous film, and porous film
US-11713383-B2 · Aug 1, 2023 · US
Photonic crystal micropatterns and anti-counterfeiting films, methods of making, and methods of use
US-2023203264-A1 · Jun 29, 2023 · US
Solvent Free Process for Manufacturing Membranes
US-2023082377-A1 · Mar 16, 2023 · US
Openly porous acoustic foam, process for manufacture and uses thereof
US-11548994-B2 · Jan 10, 2023 · US
Filtration method using porous membrane
US-11471834-B2 · Oct 18, 2022 · US
Porous film and method for producing same
US-11344848-B2 · May 31, 2022 · US
Nonaqueous electrolyte secondary battery separator
US-11198778-B2 · Dec 14, 2021 · US
Method for manufacturing porous membrane
US-10865286-B2 · Dec 15, 2020 · US
Porous film and method for producing same
US-2020346169-A1 · Nov 5, 2020 · US
Filtration method using porous membrane
US-2020215492-A1 · Jul 9, 2020 · US
Method for producing porous film, method for producing composition for producing porous film, and porous film
US-2020199322-A1 · Jun 25, 2020 · US
Polymeric crystalline composition, method of manufacturing same and uses thereof
US-2020165405-A1 · May 28, 2020 · US
Openly porous acoustic foam, process for manufacture and uses thereof
US-2020157305-A1 · May 21, 2020 · US
Nonaqueous electrolyte secondary battery separator
US-2019119476-A1 · Apr 25, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J2201/044?
- CPC C08J2201/044 is the Cooperative Patent Classification code for “Elimination of an inorganic solid phase.”
- How many patents are filed under CPC C08J2201/044 (Elimination of an inorganic solid phase)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC C08J2201/044 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).