Bisanthracene derivatives having solubilizing substituent, and organic electroluminescence device using same
US-12545650-B2 · Feb 10, 2026 · US
Preparation, separation, purification or stabilisation of unsubstituted lactams
Preparation, separation, purification or stabilisation of unsubstituted lactams · 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 | C07D201/00 |
| Official title | Preparation, separation, purification or stabilisation of unsubstituted lactams |
| Display label | Preparation, separation, purification or stabilisation of unsubstituted lactams |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
ENPP1 Inhibitors and Methods of Modulating Immune Response
US-2025059218-A1 · Feb 20, 2025 · US
Therapeutics for the treatment of glaucoma
US-12209140-B2 · Jan 28, 2025 · US
Ligand compound, transition metal compound, and catalyst composition including the same
US-12187823-B2 · Jan 7, 2025 · US
Functionalized n,n-dialkylamino phenyl ethers and their method of use
US-2024246904-A1 · Jul 25, 2024 · US
Immunomodulators
US-11952434-B2 · Apr 9, 2024 · US
Functionalized N,N-dialkylamino phenyl ethers and their method of use
US-11873267-B2 · Jan 16, 2024 · US
Single-stranded polynucleotide
US-2023272381-A1 · Aug 31, 2023 · US
Compounds, compositions, methods for treating diseases and nerve damage, and methods for preparing compounds
US-2023096380-A1 · Mar 30, 2023 · US
Therapeutics for the treatment of glaucoma
US-2023101009-A1 · Mar 30, 2023 · US
Immunomodulators
US-2023101323-A1 · Mar 30, 2023 · US
Bisanthracene Derivatives Having Solubilizing Substituent, and Organic Electroluminescence Device Using Same
US-2023089555-A1 · Mar 23, 2023 · US
Therapeutics for the treatment of glaucoma
US-11505572-B2 · Nov 22, 2022 · US
ENPP1 Inhibitors and Methods of Modulating Immune Response
US-2022289775-A1 · Sep 15, 2022 · US
Immunomodulators
US-11358988-B2 · Jun 14, 2022 · US
Ligand Compound, Transition Metal Compound, and Catalyst Composition Including the Same
US-2022049031-A1 · Feb 17, 2022 · US
Dinucleotides
US-11110114-B2 · Sep 7, 2021 · US
Calixarene compound and curable composition
US-11111225-B2 · Sep 7, 2021 · US
Compounds, compositions, and methods for treatment of androgen-mediated disease
US-2021253628-A1 · Aug 19, 2021 · US
Therapeutics for the treatment of glaucoma
US-10981951-B2 · Apr 20, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D201/00?
- CPC C07D201/00 is the Cooperative Patent Classification code for “Preparation, separation, purification or stabilisation of unsubstituted lactams.”
- How many patents are filed under CPC C07D201/00 (Preparation, separation, purification or stabilisation of unsubstituted lactams)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C07D201/00 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).