Devices and techniques relating to landfill gas extraction
US-12594590-B2 · Apr 7, 2026 · US
Extraction of vapours or gases using vacuum or venting
Extraction of vapours or gases using vacuum or venting · 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 | B09C1/005 |
| Official title | {Extraction of vapours or gases using vacuum or venting} |
| Display label | Extraction of vapours or gases using vacuum or venting |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 8 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Devices and techniques relating to landfill gas extraction
US-2025050395-A1 · Feb 13, 2025 · US
Devices and techniques relating to landfill gas extraction
US-12162053-B2 · Dec 10, 2024 · US
Devices and techniques relating to landfill gas extraction
US-2024390961-A1 · Nov 28, 2024 · US
Landfill gas extraction systems and methods
US-2024390958-A1 · Nov 28, 2024 · US
Devices and techniques relating to landfill gas extraction
US-12090532-B2 · Sep 17, 2024 · US
Landfill gas extraction systems and methods
US-12083565-B2 · Sep 10, 2024 · US
Automated compliance measurement and control for landfill gas extraction systems
US-2024109111-A1 · Apr 4, 2024 · US
Automated compliance measurement and control for landfill gas extraction systems
US-11883864-B2 · Jan 30, 2024 · US
Devices and techniques relating to landfill gas extraction
US-2024017311-A1 · Jan 18, 2024 · US
Electrokinetic-aeration-liquid injection combined remediation method for compound contaminated soil containing heavy metals and organic substances
US-11759836-B2 · Sep 19, 2023 · US
Landfill gas extraction systems and methods
US-2023114970-A1 · Apr 13, 2023 · US
Devices and techniques relating to landfill gas extraction
US-11623256-B2 · Apr 11, 2023 · US
Landfill gas extraction systems and methods
US-11491521-B2 · Nov 8, 2022 · US
Landfill gas extraction systems and methods
US-11484919-B2 · Nov 1, 2022 · US
Electrokinetic-aeration-liquid injection combined remediation method for compound contaminated soil containing heavy metals and organic substances
US-2022176428-A1 · Jun 9, 2022 · US
Landfill gas extraction systems and methods
US-11273473-B2 · Mar 15, 2022 · US
Landfill gas extraction systems and methods
US-11235361-B2 · Feb 1, 2022 · US
Devices and techniques relating to landfill gas extraction
US-2022008970-A1 · Jan 13, 2022 · US
Devices and techniques relating to landfill gas extraction
US-2022008971-A1 · Jan 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B09C1/005?
- CPC B09C1/005 is the Cooperative Patent Classification code for “Extraction of vapours or gases using vacuum or venting.”
- How many patents are filed under CPC B09C1/005 (Extraction of vapours or gases using vacuum or venting)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC B09C1/005 growing?
- Publication counts under this code: 8 in 2024 vs 1 in 2025 (latest complete years).