Densifying carbon dioxide with a dispersion of carbon dioxide-philic water capsules
US-2019345374-A1 · Nov 14, 2019 · US
After-treatment of capsule walls, e.g. hardening
After-treatment of capsule walls, e.g. hardening · 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 | B01J13/20 |
| Official title | After-treatment of capsule walls, e.g. hardening |
| Display label | After-treatment of capsule walls, e.g. hardening |
| Total patents | 169 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 4 |
| 2017 | 24 |
| 2018 | 18 |
| 2019 | 27 |
| 2020 | 19 |
| 2021 | 21 |
| 2022 | 16 |
| 2023 | 8 |
| 2024 | 13 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liposome composition and method for producing same
US-10391057-B2 · Aug 27, 2019 · US
Hollow particles and use thereof
US-2019209994-A1 · Jul 11, 2019 · US
Compositions and methods for delivery of active agents
US-2019169374-A1 · Jun 6, 2019 · US
Hollow particles and use of same
US-2019100637-A1 · Apr 4, 2019 · US
Aqueous dispersion, method for manufacturing the same, and image forming method
US-2019023921-A1 · Jan 24, 2019 · US
Delivery particle
US-10155919-B2 · Dec 18, 2018 · US
Nozzle, apparatus, and method for producing microparticles
US-10137090-B2 · Nov 27, 2018 · US
Carbon spheres and methods of making the same
US-10138129-B2 · Nov 27, 2018 · US
Particles for electrophoretic displays comprising a core and a random-copolymer coating
US-10126625-B2 · Nov 13, 2018 · US
Nozzle, apparatus, and method for producing microparticles
US-10117835-B2 · Nov 6, 2018 · US
Systems and methods for making and using gel microspheres
US-2018296488-A1 · Oct 18, 2018 · US
Method for producing aqueous dispersion of hollow polymer particles, composition for paper coating, and coated paper
US-2018291561-A1 · Oct 11, 2018 · US
Catcapsules for self-healing applications
US-2018280913-A1 · Oct 4, 2018 · US
Densifying carbon dioxide with a dispersion of carbon dioxide-philic water capsules
US-2018258341-A1 · Sep 13, 2018 · US
Densifying carbon dioxide with a dispersion of carbon dioxide-philic water capsules
US-10047276-B2 · Aug 14, 2018 · US
Microcapsules Modified with Nanomaterial for Controlled Release of Active Agent and Process for Preparation Thereof
US-2018161746-A1 · Jun 14, 2018 · US
Negative electrode active material for lithium secondary battery and method of preparing the same
US-2018151874-A1 · May 31, 2018 · US
Self-inflating microcapsules
US-2018141019-A1 · May 24, 2018 · US
Nozzle, Apparatus, and Method for Producing Microparticles
US-2018110736-A1 · Apr 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J13/20?
- CPC B01J13/20 is the Cooperative Patent Classification code for “After-treatment of capsule walls, e.g. hardening.”
- How many patents are filed under CPC B01J13/20 (After-treatment of capsule walls, e.g. hardening)?
- Our database includes 169 publications tagged with this CPC code.
- Is patent activity under CPC B01J13/20 growing?
- Publication counts under this code: 13 in 2024 vs 8 in 2025 (latest complete years).