Herbicidal compounds
US-12479804-B2 · Nov 25, 2025 · US
three- or four-membered rings
three- or four-membered rings · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A01N43/44 |
| Official title | three- or four-membered rings |
| Display label | three- or four-membered rings |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 9 |
| 2024 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Herbicidal 2-azaspiro[3-5]nonane compounds
US-12398101-B2 · Aug 26, 2025 · US
Beta-lactams and their use as herbicides
US-12389910-B2 · Aug 19, 2025 · US
Agriculture composition
US-2025176547-A1 · Jun 5, 2025 · US
2-cyanoacrylate compound, and preparation method therefor and use thereof
US-2024298639-A1 · Sep 12, 2024 · US
Fungicidal halomethyl ketones and hydrates and their mixtures
US-2024122180-A1 · Apr 18, 2024 · US
Fungicidal aryl amidines
US-2024023549-A1 · Jan 25, 2024 · US
Mixtures of pyrimidines as herbicidal compositions
US-2023389548-A1 · Dec 7, 2023 · US
Use of strobilurin type compounds for combating phytopathogenic fungi containing an amino acid substitution f129l in the mitochondrial cytochrome b protein conferring resistance to qo inhibitors viii
US-2023357152-A1 · Nov 9, 2023 · US
Mixtures of pyridazines as herbicidal compositions
US-2023284620-A1 · Sep 14, 2023 · US
Use of strobilurin type compounds for combating phytopathogenic fungi containing an amino acid substitution f129l in the mitochondrial cytochrome b protein conferring resistance to qo inhibitors iii
US-2023172204-A1 · Jun 8, 2023 · US
Use of strobilurin type compounds for combating phytopathogenic fungi containing an amino acid substitution f129l in the mitochondrial cytochrome b protein conferring resistance to qo inhibitors iv
US-2023172205-A1 · Jun 8, 2023 · US
Use of strobilurin type compounds for combating phytopathogenic fungi containing an amino acid substitution f129l in the mitochondrial cytochrome b protein conferring resistance to qo inhibitors ii
US-2023172206-A1 · Jun 8, 2023 · US
Use of strobilurin type compounds for combating phytopathogenic fungi containing an amino acid substitution f129l in the mitochondrial cytochrome b protein conferring resistance to qo inhibitors i
US-2023172207-A1 · Jun 8, 2023 · US
Beta-lactams and their use as herbicides
US-2023148598-A1 · May 18, 2023 · US
Pesticidally active cyclic amine compounds
US-2023146180-A1 · May 11, 2023 · US
Herbicidal compounds
US-2022259153-A1 · Aug 18, 2022 · US
Herbicidal 2-azaspiro[3-5]nonane compounds
US-2021395196-A1 · Dec 23, 2021 · US
Oxetanylphenoxyquinolines and analogues
US-2021378240-A1 · Dec 9, 2021 · US
Potentiated antibiotic compositions and methods of use for treating bacterial infections and biofilms
US-2021260101-A1 · Aug 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A01N43/44?
- CPC A01N43/44 is the Cooperative Patent Classification code for “three- or four-membered rings.”
- How many patents are filed under CPC A01N43/44 (three- or four-membered rings)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC A01N43/44 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).