Electroluminescent compound and electroluminescent device including the same
US-2019378981-A1 · Dec 12, 2019 · US
Spiro hydrocarbons · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C13/72 |
| Official title | Spiro hydrocarbons |
| Display label | Spiro hydrocarbons |
| Total patents | 130 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 27 |
| 2019 | 12 |
| 2020 | 14 |
| 2021 | 13 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2019378981-A1 · Dec 12, 2019 · US
US-2019345082-A1 · Nov 14, 2019 · US
US-2019263735-A1 · Aug 29, 2019 · US
US-2019221746-A1 · Jul 18, 2019 · US
US-10243145-B2 · Mar 26, 2019 · US
US-2018354931-A1 · Dec 13, 2018 · US
US-2018287073-A1 · Oct 4, 2018 · US
US-2018277762-A1 · Sep 27, 2018 · US
US-2018269404-A1 · Sep 20, 2018 · US
US-2018269411-A1 · Sep 20, 2018 · US
US-10074808-B2 · Sep 11, 2018 · US
US-2018248119-A1 · Aug 30, 2018 · US
US-2018212152-A1 · Jul 26, 2018 · US
US-10026901-B2 · Jul 17, 2018 · US
US-9991450-B2 · Jun 5, 2018 · US
US-2018148639-A1 · May 31, 2018 · US
US-2018148640-A1 · May 31, 2018 · US
US-9985226-B2 · May 29, 2018 · US
US-2018145260-A1 · May 24, 2018 · US
US-2018145272-A1 · May 24, 2018 · US
Answers are generated from the same data shown on this page.