Usy and related zeolite catalysts with blocked undesired active sites, and methods for synthesizing the same relying on selective extraction and ion-exchange
US-2026092218-A1 · Apr 2, 2026 · US
Friedel-Crafts reactions
Friedel-Crafts reactions · 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 | C07C45/46 |
| Official title | Friedel-Crafts reactions |
| Display label | Friedel-Crafts reactions |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 10 |
| 2018 | 9 |
| 2019 | 7 |
| 2020 | 12 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for the acylation of an aromatic compound
US-2023373893-A1 · Nov 23, 2023 · US
Method for preparing 1,4-bis(4-phenoxybenzoyl)benzene and 1,4-bis(4- phenoxybenzoyl)benzene prepared thereby
US-2023357114-A1 · Nov 9, 2023 · US
Continuous flow synthesis of ibuprofen
US-11639326-B2 · May 2, 2023 · US
Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene at an elevated temperature
US-11434188-B2 · Sep 6, 2022 · US
Dissociation of a 1,4-bis (4-phenoxybenzoyl)benzene-lewis acid complex in an aqueous solution
US-11358924-B2 · Jun 14, 2022 · US
Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene at an elevated temperature
US-2021363088-A1 · Nov 25, 2021 · US
Polybrominated diphenyl-based flame retardant compounds
US-11021425-B2 · Jun 1, 2021 · US
Purification of 1,4-bis (4-phenoxybenzoyl)benzene by centrifugal filtration
US-2021155571-A1 · May 27, 2021 · US
Ripening of 1,4-bis (4-phenoxybenzoyl)benzene
US-2021155570-A1 · May 27, 2021 · US
Continuous flow synthesis of ibuprofen
US-2021114962-A1 · Apr 22, 2021 · US
Ripening of 1,4-bis (4-phenoxybenzoyl)benzene
US-10981852-B2 · Apr 20, 2021 · US
Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene using substantially non-hydrolyzed terephthaloyl chloride
US-10807933-B2 · Oct 20, 2020 · US
Process for producing polyether ketone ketone
US-10793669-B2 · Oct 6, 2020 · US
Dissociation of 1,4-bis (4-phenoxybenzoyl)benzene—Lewis acid complex in a protic solvent
US-10793500-B2 · Oct 6, 2020 · US
Process for producing polyether ketone ketone
US-2020239631-A1 · Jul 30, 2020 · US
Polybrominated diphenyl-based flame retardant compounds
US-2020115308-A1 · Apr 16, 2020 · US
Method for manufacturing 1,4-bis (4-phenoxybenzoylbenzene) at an elevated temperature
US-10618863-B2 · Apr 14, 2020 · US
Dissociation of a 1,4-bis (4-phenoxybenzoyl)benzene- lewis acid complex in an aqueous solution
US-2020109100-A1 · Apr 9, 2020 · US
Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene using substantially non-hydrolyzed terephthaloyl chloride
US-10611715-B2 · Apr 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C45/46?
- CPC C07C45/46 is the Cooperative Patent Classification code for “Friedel-Crafts reactions.”
- How many patents are filed under CPC C07C45/46 (Friedel-Crafts reactions)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC C07C45/46 growing?
- Publication counts under this code: 2 in 2022 vs 3 in 2023 (latest complete years).