Suspensions and Solutions of Dyes For Colored Coatings
US-2025320362-A1 · Oct 16, 2025 · US
having also oxygen in the ring
having also oxygen in the ring · 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 | C08K5/35 |
| Official title | having also oxygen in the ring |
| Display label | having also oxygen in the ring |
| Total patents | 40 |
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 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 7 |
| 2021 | 6 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound, preparation and use thereof in rubber blends and vehicle tires, as an anti-aging agent, antioxidant, antioxidant and/or coloring agent
US-2025250241-A1 · Aug 7, 2025 · US
Expanded Polymer Pellets
US-2024326302-A1 · Oct 3, 2024 · US
Expanded Pellets and Method for Manufacturing Molded Components Using Them
US-2024286323-A1 · Aug 29, 2024 · US
Expanded polymer pellets
US-12036707-B2 · Jul 16, 2024 · US
Expanded pellets and method for manufacturing molded components using them
US-11992981-B2 · May 28, 2024 · US
Epoxy resin composition, semiconductor device, and method of producing semiconductor device
US-2024132714-A1 · Apr 25, 2024 · US
Polyamide resin composition, molded polyamide resin article, and production method therefor
US-2023192989-A1 · Jun 22, 2023 · US
Room-temperature-curable organopolysiloxane composition, structure, and method for assessing cured state of said composition
US-11518884-B2 · Dec 6, 2022 · US
Porous polyurethane polishing pad and method for manufacturing same
US-11325222-B2 · May 10, 2022 · US
PVC plasticizers and methods for making thereof
US-11279813-B2 · Mar 22, 2022 · US
Expanded Pellets and Method for Manufacturing Molded Components Using Them
US-2021370561-A1 · Dec 2, 2021 · US
Film forming composition and film forming method using the same
US-11161982-B2 · Nov 2, 2021 · US
Expanded pellets and method for manufacturing molded components using them
US-11117294-B2 · Sep 14, 2021 · US
Film forming composition
US-11059995-B2 · Jul 13, 2021 · US
Rubber composition for downhole tools and member for downhole tools
US-11059952-B2 · Jul 13, 2021 · US
Film forming composition and film forming method using the same
US-2021115253-A1 · Apr 22, 2021 · US
Room-temperature-curable organopolysiloxane composition, structure, and method for assessing cured state of said composition
US-2020392339-A1 · Dec 17, 2020 · US
Expanded polymer pellets
US-2020391417-A1 · Dec 17, 2020 · US
Film forming composition
US-2020377761-A1 · Dec 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K5/35?
- CPC C08K5/35 is the Cooperative Patent Classification code for “having also oxygen in the ring.”
- How many patents are filed under CPC C08K5/35 (having also oxygen in the ring)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC C08K5/35 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).