Hybrid membranes and methods of making and use thereof
US-2020325295-A1 · Oct 15, 2020 · US
Impregnation
Impregnation · 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 | C08J9/40 |
| Official title | Impregnation |
| Display label | Impregnation |
| Total patents | 145 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 14 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 13 |
| 2020 | 12 |
| 2021 | 11 |
| 2022 | 23 |
| 2023 | 15 |
| 2024 | 15 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Resilient foams and uses thereof
US-10800905-B2 · Oct 13, 2020 · US
Phyllosilicate-impregnated melamine-formaldehyde foam
US-2020270415-A1 · Aug 27, 2020 · US
Acoustic graphene-containing compositions/materials and methods of formation
US-2020071480-A1 · Mar 5, 2020 · US
Process for producing aerogel composite, aerogel composite, and heat-insulated object
US-2020025324-A1 · Jan 23, 2020 · US
Qd hydrogel, qd patterning method, and qd transfer printing method
US-2019369487-A1 · Dec 5, 2019 · US
Method of producing vibration damping and sound absorbing foam
US-2019358871-A1 · Nov 28, 2019 · US
Composite powder in which porous polymer is impregnated with scoria powder particles, cosmetic composition containing same, and process for producing same
US-10472485-B2 · Nov 12, 2019 · US
Reduction kit, reducing composition and use of said kit and composition
US-2019264000-A1 · Aug 29, 2019 · US
Highly hydrophobic and oleophilic melamine resin via metal-ion induced wettability transition, application, and preparation thereof
US-2019256638-A1 · Aug 22, 2019 · US
Composite and method of preparing it
US-2019233608-A1 · Aug 1, 2019 · US
Rubber member and tire
US-2019202238-A1 · Jul 4, 2019 · US
Masterbatch comprising a cyclic ketone peroxide
US-10316162-B2 · Jun 11, 2019 · US
Resilient foams and uses thereof
US-2019136016-A1 · May 9, 2019 · US
Resilient foams and uses thereof
US-10227478-B2 · Mar 12, 2019 · US
Composite powder in which porous polymer is impregnated with scoria powder particles, cosmetic composition containing same, and process for producing same
US-2019040224-A1 · Feb 7, 2019 · US
Reinforced foam structure, and associated method of forming, and article
US-2019002663-A1 · Jan 3, 2019 · US
Filter cartridge
US-10166495-B2 · Jan 1, 2019 · US
Foam having improved feeling during use
US-2018360699-A1 · Dec 20, 2018 · US
Release of biologically active agents from polymeric composite particles
US-10111424-B2 · Oct 30, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J9/40?
- CPC C08J9/40 is the Cooperative Patent Classification code for “Impregnation.”
- How many patents are filed under CPC C08J9/40 (Impregnation)?
- Our database includes 145 publications tagged with this CPC code.
- Is patent activity under CPC C08J9/40 growing?
- Publication counts under this code: 15 in 2024 vs 12 in 2025 (latest complete years).