Pond water (gas plant discharge) based fracturing fluid
US-2024328294-A1 · Oct 3, 2024 · US
Methane
Methane · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D2256/245 |
| Official title | Methane |
| Display label | Methane |
| Total patents | 1,466 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 72 |
| 2016 | 115 |
| 2017 | 122 |
| 2018 | 169 |
| 2019 | 153 |
| 2020 | 160 |
| 2021 | 147 |
| 2022 | 147 |
| 2023 | 129 |
| 2024 | 138 |
| 2025 | 97 |
| 2026 | 17 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rate/kinetic selective multiple bed adsorption process cycle
US-11883775-B2 · Jan 30, 2024 · US
Selective recovery of c2+ hydrocarbons from natural gas for steam cracker feed in an integrated refinery and steam cracker complex using pressure swing adsorption
US-2015376525-A1 · Dec 31, 2015 · US
Recovering h2 and c2+ hydrocarbons from fuel gas via use of a two-stage psa process and sending psa tail gas to a gas recovery unit to improve steam cracker feed quality
US-2015375160-A1 · Dec 31, 2015 · US
Recovering h2 and c2+ from fuel gas via use of a single-stage psa and sending psa tail gas to gas recovery unit to improve steam cracker feed quality
US-2015376092-A1 · Dec 31, 2015 · US
Pressure swing adsorption processes and systems for recovery of hydrogen and c2+ hydrocarbons
US-2015375159-A1 · Dec 31, 2015 · US
Synthesis of ultra-small pore aluminosilicates by controlled structural collapse of zeolites
US-2015367320-A1 · Dec 24, 2015 · US
Separation of biologically generated gas streams
US-2015360165-A1 · Dec 17, 2015 · US
Adsorbent having utility for co2 capture from gas mixtures
US-2015360164-A1 · Dec 17, 2015 · US
System and method for recovering gas containing co2 and h2s
US-2015361364-A1 · Dec 17, 2015 · US
Method for treating a hydrocarbon-rich gas mixture containing mercury and acid gases
US-2015360169-A1 · Dec 17, 2015 · US
Process for floating liquified natural gas pretreatment
US-9211494-B2 · Dec 15, 2015 · US
Method for processing fischer-tropsch off-gas
US-2015336043-A1 · Nov 26, 2015 · US
Method for processing fischer-tropsch off-gas
US-2015328577-A1 · Nov 19, 2015 · US
Adsorbent having utility for CO2 capture from gas mixtures
US-9186650-B2 · Nov 17, 2015 · US
Membranes for gas separation synthesized from polyimides containing 2-fluoro-2',2''-diaminotriphenylmethane in their chemical structure
US-2015314244-A1 · Nov 5, 2015 · US
Integrated process to recover high quality native co2 from a sour gas comprising h2s and c02
US-2015307359-A1 · Oct 29, 2015 · US
Falling microbead counter-flow process for separating gas mixtures
US-9168484-B1 · Oct 27, 2015 · US
Apparatus and systems having compact configuration multiple swing adsorption beds and methods related thereto
US-9162175-B2 · Oct 20, 2015 · US
Carbon molecular sieve membranes for nitrogen/methane separation
US-2015290596-A1 · Oct 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2256/245?
- CPC B01D2256/245 is the Cooperative Patent Classification code for “Methane.”
- How many patents are filed under CPC B01D2256/245 (Methane)?
- Our database includes 1,466 publications tagged with this CPC code.
- Is patent activity under CPC B01D2256/245 growing?
- Publication counts under this code: 138 in 2024 vs 97 in 2025 (latest complete years).