Process for the synthesis of n-substituted lactams and amides
US-11618732-B2 · Apr 4, 2023 · US
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Preparation of lactams
Preparation of lactams · 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 | C07D201/02 |
| Official title | Preparation of lactams |
| Display label | Preparation of lactams |
| Total patents | 10 |
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 | 1 |
| 2017 | 3 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for the synthesis of n-substituted lactams and amides
US-2021179562-A1 · Jun 17, 2021 · US
Method for producing C4-C15 lactams
US-10618873-B2 · Apr 14, 2020 · US
Method for preparing cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives
US-10577320-B2 · Mar 3, 2020 · US
Method for preparing cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives
US-2019144385-A1 · May 16, 2019 · US
Method for producing c4-c15 lactams
US-2019040005-A1 · Feb 7, 2019 · US
Membrane-supported catalyst removal in the epoxidation of cyclic unsaturated C12 compounds, for example cyclododecene (CDEN)
US-9643153-B2 · May 9, 2017 · US
Membrane-supported catalyst removal in the epoxidation of cyclic unsaturated c12 compounds, for example cyclododecene (cden)
US-2017095789-A1 · Apr 6, 2017 · US
Oxidation of cyclohexylbenzene
US-9586898-B2 · Mar 7, 2017 · US
Membrane-supported catalyst removal in the epoxidation of cyclic unsaturated c12 compounds, for example cyclododecene (cden)
US-2015328619-A1 · Nov 19, 2015 · US