Method for constructing pumping-injection well of groundwater reservoir in dump of open-pit mine
US-11673747-B2 · Jun 13, 2023 · US
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of underground water
of underground water · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E03B3/34 |
| Official title | of underground water |
| Display label | of underground water |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for constructing pumping-injection well of groundwater reservoir in dump of open-pit mine
US-2023030574-A1 · Feb 2, 2023 · US
Remediation system and method based on pollution obstruction for underground water with DNAPL pollutant
US-11203538-B2 · Dec 21, 2021 · US
Aquifer storage and recovery system using natural coagulant
US-11142472-B2 · Oct 12, 2021 · US
Aquifer storage and recovery system using natural coagulant
US-2020325043-A1 · Oct 15, 2020 · US
Aquifer storage and recovery system including aerobic reactor using microbes from underground aquifer
US-10745306-B2 · Aug 18, 2020 · US
Aquifer storage and recovery system including aerobic reactor using microbes from underground aquifer
US-2020207649-A1 · Jul 2, 2020 · US
Remediation system and method based on pollution obstruction for underground water with dnapl pollutant
US-2019152815-A1 · May 23, 2019 · US
System and method of using differential elevation induced energy for the purpose of storing water underground
US-9278808-B1 · Mar 8, 2016 · US