Metal catalysts for selective formation of cyclic carbonates, process for preparing cyclic carbonate using the same and use of cyclic carbonate
US-9850223-B2 · Dec 26, 2017 · US
condensed with one six-membered ring · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D317/46 |
| Official title | condensed with one six-membered ring |
| Display label | condensed with one six-membered ring |
| Total patents | 188 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 27 |
| 2016 | 19 |
| 2017 | 19 |
| 2018 | 21 |
| 2019 | 23 |
| 2020 | 16 |
| 2021 | 16 |
| 2022 | 11 |
| 2023 | 15 |
| 2024 | 14 |
| 2025 | 5 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-9850223-B2 · Dec 26, 2017 · US
US-2017349594-A1 · Dec 7, 2017 · US
US-9822058-B2 · Nov 21, 2017 · US
US-9790169-B2 · Oct 17, 2017 · US
US-2017260176-A1 · Sep 14, 2017 · US
US-2017231999-A1 · Aug 17, 2017 · US
US-2017204079-A1 · Jul 20, 2017 · US
US-9707292-B2 · Jul 18, 2017 · US
US-9695108-B2 · Jul 4, 2017 · US
US-9682139-B2 · Jun 20, 2017 · US
US-9650330-B2 · May 16, 2017 · US
US-2017081302-A1 · Mar 23, 2017 · US
US-9598355-B2 · Mar 21, 2017 · US
US-9533976-B2 · Jan 3, 2017 · US
US-9529259-B2 · Dec 27, 2016 · US
US-2016338996-A1 · Nov 24, 2016 · US
US-9487495-B2 · Nov 8, 2016 · US
US-2016304447-A1 · Oct 20, 2016 · US
US-2016289171-A1 · Oct 6, 2016 · US
US-2016272611-A1 · Sep 22, 2016 · US
Answers are generated from the same data shown on this page.