Electrolyte solution and method for producing sulfate salt
US-12555823-B2 · Feb 17, 2026 · US
Esters of sulfuric acids (cyclic esters C07D) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C305/00 |
| Official title | Esters of sulfuric acids (cyclic esters C07D) |
| Display label | Esters of sulfuric acids (cyclic esters C07D) |
| Total patents | 10 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 3 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 3 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12555823-B2 · Feb 17, 2026 · US
US-2022158241-A1 · May 19, 2022 · US
US-11276883-B2 · Mar 15, 2022 · US
US-2022040382-A1 · Feb 10, 2022 · US
US-10601068-B2 · Mar 24, 2020 · US
US-2019326638-A1 · Oct 24, 2019 · US
US-10374257-B2 · Aug 6, 2019 · US
US-2017358814-A1 · Dec 14, 2017 · US
US-2017352910-A1 · Dec 7, 2017 · US
US-2017200974-A1 · Jul 13, 2017 · US