Processes For The Removal Of Rubber From Non-Hevea Plants
US-2025340676-A1 · Nov 6, 2025 · US
Purification
Purification · 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 | C08C3/02 |
| Official title | Purification |
| Display label | Purification |
| Total patents | 62 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 12 |
| 2018 | 9 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes For Removing Color Bodies From Guayule
US-2025092163-A1 · Mar 20, 2025 · US
Processes for removing color bodies from guayule
US-12157780-B2 · Dec 3, 2024 · US
Purified guayule natural rubber and related processes
US-2024336708-A1 · Oct 10, 2024 · US
Carboxyl group-containing nitrile rubber
US-12110348-B2 · Oct 8, 2024 · US
Processes For The Removal Of Rubber From Non-Hevea Plants
US-2024101722-A1 · Mar 28, 2024 · US
Process for obtaining natural rubber, rubber composition containing natural rubber and use thereof
US-2023391894-A1 · Dec 7, 2023 · US
Processes for the removal of rubber from non-Hevea plants
US-11834526-B2 · Dec 5, 2023 · US
Processes For The Removal Of Rubber From Non-Hevea Plants
US-2022356273-A1 · Nov 10, 2022 · US
Guayule latex extrusion
US-11440977-B2 · Sep 13, 2022 · US
Processes for the removal of rubber from non-hevea plants
US-11396560-B2 · Jul 26, 2022 · US
Natural rubber
US-11345795-B2 · May 31, 2022 · US
Carboxyl group-containing nitrile rubber
US-2022106415-A1 · Apr 7, 2022 · US
Carboxyl group-containing nitrile rubber, method for production same, crosslinkable nitrile rubber composition, and crosslinked rubber
US-11286324-B2 · Mar 29, 2022 · US
Processes For Removing Color Bodies From Guayule
US-2022056160-A1 · Feb 24, 2022 · US
Solidification of a natural rubber latex by polyquaternary polymers
US-2021340284-A1 · Nov 4, 2021 · US
Solidification of a natural rubber latex by polyquaternary polymers
US-11142590-B2 · Oct 12, 2021 · US
Processes for recovering rubber from aged briquettes
US-11028188-B2 · Jun 8, 2021 · US
Natural rubber
US-2020283598-A1 · Sep 10, 2020 · US
Processes for the removal of rubber from non-hevea plants
US-2020239602-A1 · Jul 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08C3/02?
- CPC C08C3/02 is the Cooperative Patent Classification code for “Purification.”
- How many patents are filed under CPC C08C3/02 (Purification)?
- Our database includes 62 publications tagged with this CPC code.
- Is patent activity under CPC C08C3/02 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).