Method for the purification of ethylene cyanohydrin
US-2026055053-A1 · Feb 26, 2026 · US
containing cyano groups and hydroxy groups bound to the carbon skeleton · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C255/12 |
| Official title | containing cyano groups and hydroxy groups bound to the carbon skeleton |
| Display label | containing cyano groups and hydroxy groups bound to the carbon skeleton |
| Total patents | 13 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026055053-A1 · Feb 26, 2026 · US
US-12486220-B2 · Dec 2, 2025 · US
US-2024034715-A1 · Feb 1, 2024 · US
US-2020308109-A1 · Oct 1, 2020 · US
US-10717693-B2 · Jul 21, 2020 · US
US-2019177271-A1 · Jun 13, 2019 · US
US-2018327342-A1 · Nov 15, 2018 · US
US-9914693-B2 · Mar 13, 2018 · US
US-9206121-B2 · Dec 8, 2015 · US
US-2015329491-A1 · Nov 19, 2015 · US
US-9133113-B2 · Sep 15, 2015 · US
US-2015197489-A1 · Jul 16, 2015 · US
US-9035078-B2 · May 19, 2015 · US