Process for preparing epichlorohydrin by directly oxidizing chloropropene by using liquid-solid circulating fluidized bed reactor
US-2025388556-A1 · Dec 25, 2025 · US
with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals
with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals · 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 | C07D303/08 |
| Official title | with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals |
| Display label | with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 7 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparation of triazole compound
US-12441692-B2 · Oct 14, 2025 · US
Phenolic resin, epoxy resin, curable resin composition, cured product, fiber-reinforced composite material, and fiber-reinforced resin molded article
US-2025154314-A1 · May 15, 2025 · US
System and method for preparing epoxy chloropropane
US-12077516-B2 · Sep 3, 2024 · US
Methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-2024209252-A1 · Jun 27, 2024 · US
Method for preparing partially fluorinated alcohol
US-2024182390-A1 · Jun 6, 2024 · US
(R)-(2-methyloxiran-2-yl)methyl 4-bromobenzenesulfonate
US-11958818-B2 · Apr 16, 2024 · US
System and method for preparing epoxy chloropropane
US-2024076277-A1 · Mar 7, 2024 · US
Method for preparing partially fluorinated alcohol
US-11897832-B2 · Feb 13, 2024 · US
Process For The Preparation Of Prothioconazole And Intermediates Thereof
US-2024025865-A1 · Jan 25, 2024 · US
Process for preparation of triazole compound
US-2023286926-A1 · Sep 14, 2023 · US
Method for preparing a tetrafluoro-1,2-epoxypropane
US-11718597-B2 · Aug 8, 2023 · US
Methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-11708523-B2 · Jul 25, 2023 · US
Method for preparing a tetrafluoro-1,2-epoxypropane
US-2022289701-A1 · Sep 15, 2022 · US
(r)-(2-methyloxiran-2-yl)methyl 4-bromobenzenesulfonate
US-2022213048-A1 · Jul 7, 2022 · US
Method for preparing a tetrafluoro-1,2-epoxypropane
US-11377432-B2 · Jul 5, 2022 · US
Methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-2022169913-A1 · Jun 2, 2022 · US
Composition
US-2022153668-A1 · May 19, 2022 · US
Compositions and methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-11208590-B2 · Dec 28, 2021 · US
Polybrominated diphenyl-based flame retardant compounds
US-11021425-B2 · Jun 1, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D303/08?
- CPC C07D303/08 is the Cooperative Patent Classification code for “with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals.”
- How many patents are filed under CPC C07D303/08 (with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC C07D303/08 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).