Method for efficient catalytic synthesis of PAPS based on constructing ATP regeneration system
US-12559780-B2 · Feb 24, 2026 · US
having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides
having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides · 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 | C12P19/40 |
| Official title | having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides |
| Display label | having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 7 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engineered sucrose phosphorylase variant enzymes
US-2026035675-A1 · Feb 5, 2026 · US
Method for producing substance
US-2026028656-A1 · Jan 29, 2026 · US
Thermostable glycosyltransferase variants
US-2025388945-A1 · Dec 25, 2025 · US
Engineered sucrose phosphorylase variant enzymes
US-12480104-B2 · Nov 25, 2025 · US
Phosphoenolpyruvate carboxylase variant and method for producing 5à ¢â,¬â,,¢-inosinic acid using same
US-12410455-B2 · Sep 9, 2025 · US
Novel phosphoenolpyruvate carboxylase variant and method for producing 5'-inosinic acid using same
US-2025257379-A1 · Aug 14, 2025 · US
Polypeptide and method of producing IMP using the same
US-12269851-B2 · Apr 8, 2025 · US
Recombinant microorganism used for producing cdp-choline, and method for producing cdp-choline using said recombinant microorganism
US-2025043255-A1 · Feb 6, 2025 · US
Enzymatic synthesis of 4'-ethynyl nucleoside analogs
US-2024301460-A1 · Sep 12, 2024 · US
In vivo fluorination
US-2024263207-A1 · Aug 8, 2024 · US
Enzymatic synthesis of 4′-ethynyl nucleoside analogs
US-12037623-B2 · Jul 16, 2024 · US
Process of converting carbon dioxide using combination of carbon dioxide mineralization process and metabolism of sulfur-oxidizing microorganisms
US-11845969-B2 · Dec 19, 2023 · US
Methods for manipulating biomolecules
US-2023340554-A1 · Oct 26, 2023 · US
Polypeptide and method of producing IMP using the same
US-11746130-B2 · Sep 5, 2023 · US
Method for efficient catalytic synthesis of PAPS based on constructing ATP regeneration system
US-2023272444-A1 · Aug 31, 2023 · US
Polypeptide and method of producing imp using the same
US-2023192780-A1 · Jun 22, 2023 · US
Enhanced production of histidine, purine pathway metabolites, and plasmid dna
US-2023065419-A1 · Mar 2, 2023 · US
Methods for manipulating biomolecules
US-11542535-B2 · Jan 3, 2023 · US
Polypeptide and method of producing imp using the same
US-2022348616-A1 · Nov 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12P19/40?
- CPC C12P19/40 is the Cooperative Patent Classification code for “having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides.”
- How many patents are filed under CPC C12P19/40 (having a condensed ring system containing a six-membered ring having two nitrogen atoms in the same ring, e.g. purine nucleosides)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC C12P19/40 growing?
- Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).