Method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid
US-2025084110-A1 · Mar 13, 2025 · US
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containing cyano groups and doubly-bound oxygen atoms bound to the same acyclic carbon skeleton
containing cyano groups and doubly-bound oxygen atoms bound to the same acyclic carbon skeleton · 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 | C07C255/17 |
| Official title | containing cyano groups and doubly-bound oxygen atoms bound to the same acyclic carbon skeleton |
| Display label | containing cyano groups and doubly-bound oxygen atoms bound to the same acyclic carbon skeleton |
| Total patents | 21 |
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 | 3 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal Complex, Semiconductor Layer Comprising a Metal Complex and Organic Electronic Device
US-2024383935-A1 · Nov 21, 2024 · US
Compound, Semiconductor Layer Comprising Compound and Organic Electronic Device
US-2024381760-A1 · Nov 14, 2024 · US
Method for preparing C-H acidic (meth)acrylates
US-11912648-B2 · Feb 27, 2024 · US
Aryl and pyridyl amide pesticides and compositions thereof
US-2023337677-A1 · Oct 26, 2023 · US
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
US-11639330-B2 · May 2, 2023 · US
Low refractive index compound and electronic apparatus including the same
US-11575091-B2 · Feb 7, 2023 · US
Pinene-derived diisocyanates
US-11225458-B2 · Jan 18, 2022 · US
Actinic ray-sensitive or radiation-sensitive resin composition, resist film, pattern forming method, and method for manufacturing electronic device
US-2021364917-A1 · Nov 25, 2021 · US
Method for preparing c-h acidic (meth)acrylates
US-2021269393-A1 · Sep 2, 2021 · US
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
US-2021188766-A1 · Jun 24, 2021 · US
Low refractive index compound and electronic apparatus including the same
US-2021159427-A1 · May 27, 2021 · US
Pinene-derived diisocyanates
US-10590069-B2 · Mar 17, 2020 · US
Amino acid preparation method comprising a step of hydroformylation of an unsaturated fatty nitrile
US-10125221-B2 · Nov 13, 2018 · US
Kinase inhibitors
US-9790209-B2 · Oct 17, 2017 · US
Kinase inhibitors
US-2016340343-A1 · Nov 24, 2016 · US
Electron deficient olefins
US-9481640-B2 · Nov 1, 2016 · US
Electron deficient olefins
US-2016075641-A1 · Mar 17, 2016 · US
Kinase inhibitors
US-2015225373-A1 · Aug 13, 2015 · US
Electron deficient olefins
US-2015191424-A1 · Jul 9, 2015 · US