Production method for peptide compound
US-2025276995-A1 · Sep 4, 2025 · US
Carbodiimides
Carbodiimides · 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 | C07C267/00 |
| Official title | Carbodiimides |
| Display label | Carbodiimides |
| Total patents | 49 |
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 | 5 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 10 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aromatic carbodiimides, process for the preparation and use thereof
US-2024294693-A1 · Sep 5, 2024 · US
Acrylic compound containing perfluoropolyether group and composition comprising the same
US-2024279163-A1 · Aug 22, 2024 · US
Phenyl isocyanate conversion process
US-12030836-B2 · Jul 9, 2024 · US
Process for Preparing Carbodiimides
US-2024209136-A1 · Jun 27, 2024 · US
Production method of maleimide
US-11958806-B2 · Apr 16, 2024 · US
Method for producing carbodiimides
US-11447447-B2 · Sep 20, 2022 · US
Phenyl isocyanate conversion process
US-2022106264-A1 · Apr 7, 2022 · US
Biscarbodiimides and polycarbodiimides and method for their preparation
US-11104641-B2 · Aug 31, 2021 · US
Light colored modified isocyanate mixture and preparation method thereof
US-11034651-B2 · Jun 15, 2021 · US
Production method of maleimide
US-2021009516-A1 · Jan 14, 2021 · US
Production method of maleimide
US-10836719-B2 · Nov 17, 2020 · US
Method for producing carbodiimides
US-2020331849-A1 · Oct 22, 2020 · US
A Light Colored Modified Isocyanate Mixture And Preparation Method Thereof
US-2020283375-A1 · Sep 10, 2020 · US
Process for preparing liquid, storage-stable organic isocyanates having carbodiimide and/or uretonimine groups and having low colour number
US-10633330-B2 · Apr 28, 2020 · US
Method for producing a composition comprising polycarbodiimide having improved storage stability
US-10633476-B2 · Apr 28, 2020 · US
Bismaleimide and method for producing the same
US-2019382341-A1 · Dec 19, 2019 · US
Production method of maleimide
US-2019345102-A1 · Nov 14, 2019 · US
Method of preparing a polycarbodiimide polymer and polycarbodiimide polymer prepared thereby
US-10457767-B2 · Oct 29, 2019 · US
Method for the synthesis of polymer carbodiimides with added cesium salts, polymer carbodiimides, and use thereof
US-10351652-B2 · Jul 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C267/00?
- CPC C07C267/00 is the Cooperative Patent Classification code for “Carbodiimides.”
- How many patents are filed under CPC C07C267/00 (Carbodiimides)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC C07C267/00 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).