A series of pyrrole derivatives and their preparation method and therapeutic use
US-2024327423-A1 · Oct 3, 2024 · US
Peri-condensed systems
Peri-condensed systems · 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 | C07D498/16 |
| Official title | Peri-condensed systems |
| Display label | Peri-condensed systems |
| Total patents | 203 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 24 |
| 2017 | 20 |
| 2018 | 20 |
| 2019 | 22 |
| 2020 | 18 |
| 2021 | 17 |
| 2022 | 16 |
| 2023 | 12 |
| 2024 | 14 |
| 2025 | 18 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for the acylation of maytansinol
US-9796731-B2 · Oct 24, 2017 · US
Crystalline forms of an antiviral compound
US-2017267694-A1 · Sep 21, 2017 · US
Inhibitors of hif prolyl hydroxylase
US-2017233412-A1 · Aug 17, 2017 · US
Synthesis of an antiviral compound
US-2017210756-A1 · Jul 27, 2017 · US
Tricyclic heterocycles as bet protein inhibitors
US-2017210754-A1 · Jul 27, 2017 · US
Pyridazinone macrocycles as irak inhibitors and uses thereof
US-2017173019-A1 · Jun 22, 2017 · US
Organic electroluminescent materials and devices
US-2017162802-A1 · Jun 8, 2017 · US
Fused tricyclic heterocyclic compounds as HIV integrase inhibitors
US-9643982-B2 · May 9, 2017 · US
Polycyclic-carbamoylpyridone compounds and their pharmaceutical use
US-9630978-B2 · Apr 25, 2017 · US
Tricyclic heterocycles as BET protein inhibitors
US-9624241-B2 · Apr 18, 2017 · US
Pyridazinone macrocycles as IRAK inhibitors and uses thereof
US-9624246-B2 · Apr 18, 2017 · US
Organic electroluminescent materials and devices
US-2017040554-A1 · Feb 9, 2017 · US
Crystalline forms of an antiviral compound
US-9562058-B2 · Feb 7, 2017 · US
Bicyclic lactams and methods of use thereof
US-2017008877-A1 · Jan 12, 2017 · US
Inhibitors of hepatitis c virus
US-2016361375-A1 · Dec 15, 2016 · US
Tricyclic triazolic compounds
US-9512142-B2 · Dec 6, 2016 · US
Methods for the acylation of maytansinol
US-9469655-B2 · Oct 18, 2016 · US
Polycyclic-carbamoylpyridone compounds and their pharmaceutical use
US-2016289246-A1 · Oct 6, 2016 · US
Synthesis of an antiviral compound
US-9440991-B2 · Sep 13, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D498/16?
- CPC C07D498/16 is the Cooperative Patent Classification code for “Peri-condensed systems.”
- How many patents are filed under CPC C07D498/16 (Peri-condensed systems)?
- Our database includes 203 publications tagged with this CPC code.
- Is patent activity under CPC C07D498/16 growing?
- Publication counts under this code: 14 in 2024 vs 18 in 2025 (latest complete years).