Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products
US-2025289777-A1 · Sep 18, 2025 · US
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Pyruvic acid
Pyruvic acid · 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 | C07C59/19 |
| Official title | Pyruvic acid |
| Display label | Pyruvic acid |
| Total patents | 16 |
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 |
| 2017 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products
US-12281067-B2 · Apr 22, 2025 · US
Methods for producing alpha-keto acid and pyruvic acid
US-12148933-B2 · Nov 19, 2024 · US
Methods for producing alpha-keto acid and pyruvic acid
US-2023420690-A1 · Dec 28, 2023 · US
Methods for producing alpha-keto acid and pyruvic acid
US-11784319-B2 · Oct 10, 2023 · US
Photoinitiators for light-curable compositions
US-11655314-B2 · May 23, 2023 · US
Photoinitiators for light-curable compositions
US-11518823-B2 · Dec 6, 2022 · US
Photoinitiators for light-curable compositions
US-2022235153-A1 · Jul 28, 2022 · US
Composition comprising a dicarbonyl derivative and method for straightening the hair using this composition
US-2022105015-A1 · Apr 7, 2022 · US
Method for extracting alpha-ketoglutarate and pyruvate simultaneously from microbial fermentation broth or enzymatic conversion solution
US-11193148-B2 · Dec 7, 2021 · US
Dehydration and cracking of alpha-, beta-dihydroxy carbonyl compounds to lactic acid and other products
US-2021163394-A1 · Jun 3, 2021 · US
Electrode catalyst
US-2021057758-A1 · Feb 25, 2021 · US
Method for producing lactic acid
US-2020283918-A1 · Sep 10, 2020 · US
Photoinitiators for light-curable compositions
US-2020231531-A1 · Jul 23, 2020 · US
Composition comprising a dicarbonyl derivative and method for straightening the hair using this composition
US-2017290754-A1 · Oct 12, 2017 · US
Composition comprising a dicarbonyl derivative and method for straightening the hair using this composition
US-2015272843-A1 · Oct 1, 2015 · US