Porous film and method of forming porous film
US-2017369665-A1 · Dec 28, 2017 · US
containing nitrogen
containing nitrogen · 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 | C08J9/0028 |
| Official title | {containing nitrogen} |
| Display label | containing nitrogen |
| Total patents | 326 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 25 |
| 2017 | 30 |
| 2018 | 34 |
| 2019 | 34 |
| 2020 | 25 |
| 2021 | 22 |
| 2022 | 31 |
| 2023 | 23 |
| 2024 | 46 |
| 2025 | 31 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermally expandable preparations
US-9790341-B2 · Oct 17, 2017 · US
Amide elastomer foam particles, method for producing same, foam molded body and method for producing foam molded body
US-2017283555-A1 · Oct 5, 2017 · US
Inherent flame retardant rigid polyurethane foam
US-9718937-B2 · Aug 1, 2017 · US
Polyolefin-based resin pre-expanded particle, in-mold foamed article, process for producing the polyolefin-based resin pre-expanded particle, and process for producing the in-mold foamed article
US-2017204240-A1 · Jul 20, 2017 · US
Microcellular foamed nanocomposite and preparation method thereof
US-2017190862-A1 · Jul 6, 2017 · US
Conductive polypropylene-based foamed resin particles, method for production thereof, and polypropylene-based foamed molding article
US-2017162292-A1 · Jun 8, 2017 · US
Method of manufacturing polystyrene foam with polymer processing additives
US-2017114201-A9 · Apr 27, 2017 · US
Method of manufacturing polystyrene foam with polymer processing additives
US-2017114202-A9 · Apr 27, 2017 · US
Low-resilience polyurethane foam and production method thereof
US-9611370-B2 · Apr 4, 2017 · US
In-mold foam molded body comprising polypropylene resin foam particles and method for producing same
US-9611369-B2 · Apr 4, 2017 · US
Conductive foam roll
US-2017075253-A1 · Mar 16, 2017 · US
Chemical mechanical polishing pad and method of making same
US-9586305-B2 · Mar 7, 2017 · US
Electret sheet and piezoelectric sensor
US-2017062138-A1 · Mar 2, 2017 · US
Polyurethane foams based on polyether carbonate polyols
US-2017044341-A1 · Feb 16, 2017 · US
Polymeric material for an insulated container
US-9562140-B2 · Feb 7, 2017 · US
Chemical mechanical polishing pad and method of making same
US-2016375543-A1 · Dec 29, 2016 · US
Aldehyde scavengers mixtures for polyurethane foams
US-2016369035-A1 · Dec 22, 2016 · US
Foam sheet using cross-linked polylactic acid, and preparation method thereof
US-9512265-B2 · Dec 6, 2016 · US
Tyre, the tread of which comprises a heat-expandable rubber composition reducing noise during travel
US-9505897-B2 · Nov 29, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J9/0028?
- CPC C08J9/0028 is the Cooperative Patent Classification code for “containing nitrogen.”
- How many patents are filed under CPC C08J9/0028 (containing nitrogen)?
- Our database includes 326 publications tagged with this CPC code.
- Is patent activity under CPC C08J9/0028 growing?
- Publication counts under this code: 46 in 2024 vs 31 in 2025 (latest complete years).