Integrated process for the sustainable and autonomous co2-emission-free production of hydrogen and related system
US-2024200017-A1 · Jun 20, 2024 · US
Methane
Methane · 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 | C12P5/023 |
| Official title | {Methane} |
| Display label | Methane |
| Total patents | 383 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 34 |
| 2016 | 41 |
| 2017 | 52 |
| 2018 | 32 |
| 2019 | 37 |
| 2020 | 28 |
| 2021 | 40 |
| 2022 | 24 |
| 2023 | 28 |
| 2024 | 27 |
| 2025 | 33 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system of treating biomass wastes by biochemistry-thermochemistry multi-point interconnection
US-2016376205-A1 · Dec 29, 2016 · US
Solubilization of coal or lignocellulose biomass
US-9528061-B2 · Dec 27, 2016 · US
Process for dry fractionation of lignocellulosic biomass
US-2016369305-A1 · Dec 22, 2016 · US
Anaerobic digester service device with a separation curtain
US-9512394-B2 · Dec 6, 2016 · US
Methods For Degrading or Converting Plant Cell Wall Polysaccharides
US-2016289722-A1 · Oct 6, 2016 · US
Processing biomass and petroleum containing materials
US-2016289577-A1 · Oct 6, 2016 · US
Processing biomass and petroleum containing materials
US-2016293990-A1 · Oct 6, 2016 · US
Processing biomass and petroleum containing materials
US-2016289706-A1 · Oct 6, 2016 · US
Processing biomass and petroleum containing materials
US-2016289704-A1 · Oct 6, 2016 · US
Processing biomass and petroleum containing materials
US-2016289705-A1 · Oct 6, 2016 · US
Artificial photosynthesis systems and methods for producing carbon-based chemical compounds
US-2016264920-A1 · Sep 15, 2016 · US
Method for treating lignocellulose-bearing materials
US-9416374-B2 · Aug 16, 2016 · US
Solid waste treatment with conversion to gas and anaerobic digestion
US-2016230193-A1 · Aug 11, 2016 · US
Processing biomass
US-2016222475-A1 · Aug 4, 2016 · US
Process for rapid anaerobic digestion of biomass using microbes and the production of biofuels therefrom
US-9376692-B2 · Jun 28, 2016 · US
Processing biomass
US-9359620-B2 · Jun 7, 2016 · US
Processing biomass and petroleum containing materials
US-9352294-B1 · May 31, 2016 · US
Process for producing bio-based product from straw hemicellulose and fully utilizing the components thereof
US-9309577-B2 · Apr 12, 2016 · US
Process for the crystallisation of a water-soluble compound
US-2016097321-A1 · Apr 7, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12P5/023?
- CPC C12P5/023 is the Cooperative Patent Classification code for “Methane.”
- How many patents are filed under CPC C12P5/023 (Methane)?
- Our database includes 383 publications tagged with this CPC code.
- Is patent activity under CPC C12P5/023 growing?
- Publication counts under this code: 27 in 2024 vs 33 in 2025 (latest complete years).