Process for making a pd-1/pd-l1 inhibitor and salts and crystalline forms thereof
US-2025333416-A1 · Oct 30, 2025 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C07C255/53 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 6 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
A new route for synthesizing axially chiral cannabinoids from coumarins
US-2025326733-A1 · Oct 23, 2025 · US
Process for making a PD-1/PD-L1 inhibitor and salts and crystalline forms thereof
US-12404272-B2 · Sep 2, 2025 · US
Tetralin and tetrahydroquinoline compounds as inhibitors of hif-2alpha
US-2025214930-A1 · Jul 3, 2025 · US
Cannabinoid derivatives
US-12195429-B2 · Jan 14, 2025 · US
Tetralin and tetrahydroquinoline compounds as inhibitors of HIF-2alpha
US-12103907-B2 · Oct 1, 2024 · US
Tetralin and tetrahydroquinoline compounds as inhibitors of hif-2alpha
US-2024254079-A1 · Aug 1, 2024 · US
Synthetic antibacterial compounds and uses thereof
US-12011422-B2 · Jun 18, 2024 · US
Process for making a pd-1/pd-l1 inhibitor and salts and crystalline forms thereof
US-2024158395-A1 · May 16, 2024 · US
Process for making a PD-1/PD-L1 inhibitor and salts and crystalline forms thereof
US-11866434-B2 · Jan 9, 2024 · US
Tetralin and tetrahydroquinoline compounds as inhibitors of HIF-2alpha
US-11787762-B2 · Oct 17, 2023 · US
Catalyst containing activated carbon adsorbed with ruthenium complex, and method for producing reduction product using same
US-2023285945-A1 · Sep 14, 2023 · US
Preparation method for (4-isopropoxy-2-methyl)phenyl isopropyl ketone
US-2023212101-A1 · Jul 6, 2023 · US
Process for the preparation of bromodomain inhibitor
US-2023128975-A1 · Apr 27, 2023 · US
Organic materials with special optical effects
US-11613513-B2 · Mar 28, 2023 · US
Process for the preparation of bromodomain inhibitor
US-11566004-B2 · Jan 31, 2023 · US
Herbicidal compounds
US-2023024283-A1 · Jan 26, 2023 · US
Tetralin and tetrahydroquinoline compounds as inhibitors of hif-2alpha
US-2023021476-A1 · Jan 26, 2023 · US
Aptamer nucleic acid molecule, and complex and application thereof
US-2023002769-A1 · Jan 5, 2023 · US
Synthetic Antibacterial Compounds and Uses Thereof
US-2022401384-A1 · Dec 22, 2022 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C255/53?
- CPC C07C255/53 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C07C255/53 (Chemistry & Metallurgy)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC C07C255/53 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).