Viscous polyhydroxyalkanoate, preparation thereof, and use thereof
US-12571011-B2 · Mar 10, 2026 · US
having five or less carbon atoms
having five or less carbon atoms · 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 | C12N1/30 |
| Official title | having five or less carbon atoms |
| Display label | having five or less carbon atoms |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Viscous polyhydroxyalkanoate, preparation thereof, and use thereof
US-2025163479-A1 · May 22, 2025 · US
Glycogen-null methanotrophs and uses thereof
US-12234445-B2 · Feb 25, 2025 · US
Gas-fed fermentation reactors, systems and processes
US-12116563-B2 · Oct 15, 2024 · US
Integrated systems and methods for combining methanotrophic bacterial biomass production and methanation process
US-2023340401-A1 · Oct 26, 2023 · US
Gas-fed fermentation reactors, systems and processes utilizing a vertical flow zone
US-11795428-B2 · Oct 24, 2023 · US
Processes and systems for metabolite production using hydrogen rich C1-containing substrates
US-11466295-B2 · Oct 11, 2022 · US
Gas-fed fermentation reactors, systems and processes
US-2022259548-A1 · Aug 18, 2022 · US
Gas-fed fermentation reactors, systems and processes
US-11332706-B2 · May 17, 2022 · US
Glycogen-null methanotrophs and uses thereof
US-2022010268-A1 · Jan 13, 2022 · US
Microorganisms for the enhanced production of amino acids and related methods
US-10889842-B2 · Jan 12, 2021 · US
Processes and systems for metabolite production using hydrogen rich c1-containing substrates
US-2020399664-A1 · Dec 24, 2020 · US
Processes and systems for metabolite production using hydrogen rich C1-containing substrates
US-10808263-B2 · Oct 20, 2020 · US
Gas-fed fermentation reactors, systems and processes
US-2020172853-A1 · Jun 4, 2020 · US
Gas-fed fermentation reactors, systems and processes
US-10570364-B2 · Feb 25, 2020 · US
Gas-fed fermentation reactors, systems and processes
US-10538730-B2 · Jan 21, 2020 · US
Gas-fed fermentation reactors, systems and processes utilizing a vertical flow zone
US-2019352592-A1 · Nov 21, 2019 · US
Gas-fed fermentation reactors, systems and processes
US-2019264164-A1 · Aug 29, 2019 · US
Processes and systems for metabolite production using hydrogen rich c1-containing substrates
US-2019078121-A1 · Mar 14, 2019 · US
Recombinant acetogenic bacterium for the conversion of methane to products
US-10131884-B2 · Nov 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12N1/30?
- CPC C12N1/30 is the Cooperative Patent Classification code for “having five or less carbon atoms.”
- How many patents are filed under CPC C12N1/30 (having five or less carbon atoms)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC C12N1/30 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).