Vinylsulfonic anhydride, method for producing same, and method for producing vinylsulfonyl fluoride
US-11649205-B2 · May 16, 2023 · US
This page is not indexed by search engines while we improve data quality.
Halides of sulfonic acids
Halides of sulfonic acids · 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 | C07C309/78 |
| Official title | Halides of sulfonic acids |
| Display label | Halides of sulfonic acids |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2021 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vinylsulfonic anhydride, method for producing same, and method for producing vinylsulfonyl fluoride
US-2021269395-A1 · Sep 2, 2021 · US
Photoacid generator compound, polymer comprising end groups containing the photoacid generator compound, and method of making
US-9279027-B1 · Mar 8, 2016 · US
Photoacid generator compound, polymer comprising end groups containing the photoacid generator compound, and method of making
US-2016046749-A1 · Feb 18, 2016 · US