Quaternary ammonium salt, organic structure-directing agent, method for producing quaternary ammonium salt, con-type zeolite, method for producing con-type zeolite, catalyst, and method for producing lower olefin
US-2025115685-A1 · Apr 10, 2025 · US
with chromium derivatives · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C45/292 |
| Official title | {with chromium derivatives} |
| Display label | with chromium derivatives |
| Total patents | 32 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025115685-A1 · Apr 10, 2025 · US
US-12084411-B2 · Sep 10, 2024 · US
US-12048710-B2 · Jul 30, 2024 · US
US-11999679-B2 · Jun 4, 2024 · US
US-2023391700-A1 · Dec 7, 2023 · US
US-11767279-B2 · Sep 26, 2023 · US
US-11753358-B2 · Sep 12, 2023 · US
US-2022356135-A1 · Nov 10, 2022 · US
US-2022348527-A1 · Nov 3, 2022 · US
US-11440865-B2 · Sep 13, 2022 · US
US-11440864-B2 · Sep 13, 2022 · US
US-2022202837-A1 · Jun 30, 2022 · US
US-11345649-B2 · May 31, 2022 · US
US-11278554-B2 · Mar 22, 2022 · US
US-2022033332-A1 · Feb 3, 2022 · US
US-2021380511-A1 · Dec 9, 2021 · US
US-11180435-B2 · Nov 23, 2021 · US
US-2021340085-A1 · Nov 4, 2021 · US
US-11142491-B2 · Oct 12, 2021 · US
US-11078143-B2 · Aug 3, 2021 · US
Answers are generated from the same data shown on this page.