Process for preparing cyanoacetates
US-11976024-B2 · May 7, 2024 · US
This page is not indexed by search engines while we improve data quality.
by addition of hydrogen cyanide or salts thereof to unsaturated compounds
by addition of hydrogen cyanide or salts thereof to unsaturated compounds · 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 | C07C253/08 |
| Official title | by addition of hydrogen cyanide or salts thereof to unsaturated compounds |
| Display label | by addition of hydrogen cyanide or salts thereof to unsaturated compounds |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparing nitrile intermediates for nitrogen-containing chelators
US-2023008538-A1 · Jan 12, 2023 · US
Process for preparing cyanoacetates
US-2022315526-A1 · Oct 6, 2022 · US
Processes for preparing ACC inhibitors and solid forms thereof
US-11279710-B2 · Mar 22, 2022 · US
Production of nitrogen-containing chelators
US-2021403412-A1 · Dec 30, 2021 · US
Production of nitrogen-containing chelators
US-2021403413-A1 · Dec 30, 2021 · US
Production of nitrogen-containing chelators
US-2021403414-A1 · Dec 30, 2021 · US
Processes for preparing acc inhibitors and solid forms thereof
US-2021024537-A1 · Jan 28, 2021 · US
Processes for preparing ACC inhibitors and solid forms thereof
US-10745412-B2 · Aug 18, 2020 · US
Processes for preparing acc inhibitors and solid forms thereof
US-2020199147-A1 · Jun 25, 2020 · US
Processes for preparing ACC inhibitors and solid forms thereof
US-10519165-B2 · Dec 31, 2019 · US
Method for preparing acrolein cyanohydrins
US-10214484-B2 · Feb 26, 2019 · US
Method for preparing acrolein cyanohydrins
US-2018305303-A1 · Oct 25, 2018 · US
Processes for preparing acc inhibitors and solid forms thereof
US-2018298025-A1 · Oct 18, 2018 · US
Process for preparing EDA using SO2-free hydrocyanic acid
US-9914693-B2 · Mar 13, 2018 · US
Method for the distillative purification of EDA
US-9828329-B2 · Nov 28, 2017 · US
Method for the distillative purification of eda
US-2017217874-A1 · Aug 3, 2017 · US
Process to prepare a chelating agent or precursor thereof using a cyanide salt
US-9334232-B2 · May 10, 2016 · US
Process for preparing eda using so2-free hydrocyanic acid
US-2016009633-A1 · Jan 14, 2016 · US
Method for the production of D,L-methionine
US-9206121-B2 · Dec 8, 2015 · US