Trialkylphosphonium ionic liquids, methods of making, and alkylation processes using trialkylphosphonium ionic liquids
US-11123721-B2 · Sep 21, 2021 · US
the non-hydrocarbon contains only halogen as hetero-atoms · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C2/861 |
| Official title | {the non-hydrocarbon contains only halogen as hetero-atoms} |
| Display label | the non-hydrocarbon contains only halogen as hetero-atoms |
| Total patents | 80 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 10 |
| 2017 | 14 |
| 2018 | 5 |
| 2019 | 19 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 10 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11123721-B2 · Sep 21, 2021 · US
US-2021016264-A1 · Jan 21, 2021 · US
US-10800715-B2 · Oct 13, 2020 · US
US-2020172451-A1 · Jun 4, 2020 · US
US-10604618-B2 · Mar 31, 2020 · US
US-10584080-B2 · Mar 10, 2020 · US
US-2019390000-A1 · Dec 26, 2019 · US
US-10463901-B2 · Nov 5, 2019 · US
US-10463391-B2 · Nov 5, 2019 · US
US-2019263728-A1 · Aug 29, 2019 · US
US-10377723-B2 · Aug 13, 2019 · US
US-10377724-B2 · Aug 13, 2019 · US
US-10370397-B2 · Aug 6, 2019 · US
US-10361371-B2 · Jul 23, 2019 · US
US-2019177247-A1 · Jun 13, 2019 · US
US-10308562-B2 · Jun 4, 2019 · US
US-2019161458-A1 · May 30, 2019 · US
US-2019161457-A1 · May 30, 2019 · US
US-10280147-B2 · May 7, 2019 · US
US-2019105644-A1 · Apr 11, 2019 · US
Answers are generated from the same data shown on this page.