Preparation method of wear-resistant polyester material
US-2025197587-A1 · Jun 19, 2025 · US
Ingredients of unknown constitution and ingredients covered by the main groups C08K3/00 - C08K9/00
Ingredients of unknown constitution and ingredients covered by the main groups C08K3/00 - C08K9/00 · 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 | C08K13/08 |
| Official title | Ingredients of unknown constitution and ingredients covered by the main groups C08K3/00 - C08K9/00 |
| Display label | Ingredients of unknown constitution and ingredients covered by the main groups C08K3/00 - C08K9/00 |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 6 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Red mud-based composite asphalt anti-aging agent, and preparation method therefor and use thereof
US-12146044-B1 · Nov 19, 2024 · US
Resin composition, pellet and molded article
US-2024218162-A1 · Jul 4, 2024 · US
Golf ball components incorporating reclaimed resources and golf balls formed therefrom
US-2024207688-A1 · Jun 27, 2024 · US
Composite materials systems
US-2024010818-A1 · Jan 11, 2024 · US
Cyclohexane triester based plasticizer composition and resin composition comprising the same
US-11851547-B2 · Dec 26, 2023 · US
Composite materials systems
US-11767414-B2 · Sep 26, 2023 · US
Low shrinkage low oligomer polyester film and method for manufacturing the same
US-11732097-B2 · Aug 22, 2023 · US
Sulphur additive and sulphur modified bitumen
US-2023130068-A1 · Apr 27, 2023 · US
Composite materials systems
US-2022275174-A1 · Sep 1, 2022 · US
Composite materials systems
US-11352481-B2 · Jun 7, 2022 · US
Water insoluble alpha-(1,3-glucan) composition
US-11208765-B2 · Dec 28, 2021 · US
Low shrinkage low oligomer polyester film and method for manufacturing the same
US-2021253809-A1 · Aug 19, 2021 · US
Cyclohexane triester based plasticizer composition and resin composition comprising the same
US-2021221976-A1 · Jul 22, 2021 · US
Composite materials systems containing carbon and resin
US-10907031-B2 · Feb 2, 2021 · US
Water insoluble alpha-(1,3-glucan) composition
US-2020354895-A1 · Nov 12, 2020 · US
Vacuum insulated glass windows with friction reduction compositions and methods of making the same
US-10760325-B2 · Sep 1, 2020 · US
Water insoluble alpha-(1,3-glucan) composition
US-10731297-B2 · Aug 4, 2020 · US
Pigments for filtering the solar spectrum
US-10689529-B2 · Jun 23, 2020 · US
Composite materials systems
US-2020172705-A1 · Jun 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K13/08?
- CPC C08K13/08 is the Cooperative Patent Classification code for “Ingredients of unknown constitution and ingredients covered by the main groups C08K3/00 - C08K9/00.”
- How many patents are filed under CPC C08K13/08 (Ingredients of unknown constitution and ingredients covered by the main groups C08K3/00 - C08K9/00)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC C08K13/08 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).