Method for separating polyisoprene and other apolar valuable substances from vegetable feedstock
US-12583953-B2 · Mar 24, 2026 · US
Treatment of rubber before vulcanisation, not provided for in groups C08C1/00 - C08C3/02
Treatment of rubber before vulcanisation, not provided for in groups C08C1/00 - C08C3/02 · 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 | C08C4/00 |
| Official title | Treatment of rubber before vulcanisation, not provided for in groups C08C1/00 - C08C3/02 |
| Display label | Treatment of rubber before vulcanisation, not provided for in groups C08C1/00 - C08C3/02 |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and processing facility for processing styrene acrylonitrile
US-2026028431-A1 · Jan 29, 2026 · US
Processes For The Removal Of Rubber From Non-Hevea Plants
US-2025340676-A1 · Nov 6, 2025 · US
Processes for increasing the molecular weight of guayule natural rubber
US-12258427-B2 · Mar 25, 2025 · US
Chloroprene polymer, chloroprene polymer latex, method for producing chloroprene polymer latex, compound composition and valcanization molded body
US-2024117083-A1 · Apr 11, 2024 · US
Systems and methods for the management of waste associated with processing guayule shrubs to extract rubber
US-11858003-B2 · Jan 2, 2024 · US
Processes for the removal of rubber from non-Hevea plants
US-11834526-B2 · Dec 5, 2023 · US
Refresh agent
US-11773230-B2 · Oct 3, 2023 · US
Extrusion dryer for rubbery polymer, drying method of rubbery polymer, and production method of rubbery polymer
US-11680112-B2 · Jun 20, 2023 · US
Method for Separating Polyisoprene and Other Apolar Valuable Substances from Vegetable Feedstock
US-2023069783-A1 · Mar 2, 2023 · US
Processes For The Removal Of Rubber From Non-Hevea Plants
US-2022356273-A1 · Nov 10, 2022 · US
Processes for the removal of rubber from non-hevea plants
US-11396560-B2 · Jul 26, 2022 · US
Systems And Methods For The Management Of Waste Associated With Processing Guayule Shrubs To Extract Rubber
US-2022184663-A1 · Jun 16, 2022 · US
Systems and methods for the management of waste associated with processing guayule shrubs to extract rubber
US-11267019-B2 · Mar 8, 2022 · US
Processes For Increasing The Molecular Weight Of Guayule Natural Rubber
US-2022064339-A1 · Mar 3, 2022 · US
Rubber composition for tires, method for preparing rubber composition for tires, and tire
US-11225532-B2 · Jan 18, 2022 · US
Processes for recovering rubber from aged briquettes
US-11028188-B2 · Jun 8, 2021 · US
Refresh Agent
US-2021002442-A1 · Jan 7, 2021 · US
Processes for the removal of rubber from non-hevea plants
US-2020239602-A1 · Jul 30, 2020 · US
Refresh agent
US-10717838-B2 · Jul 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08C4/00?
- CPC C08C4/00 is the Cooperative Patent Classification code for “Treatment of rubber before vulcanisation, not provided for in groups C08C1/00 - C08C3/02.”
- How many patents are filed under CPC C08C4/00 (Treatment of rubber before vulcanisation, not provided for in groups C08C1/00 - C08C3/02)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC C08C4/00 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).