Measurement-while-drilling method and device for obtaining coal seam gas parameter
US-11268377-B2 · Mar 8, 2022 · US
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Qiu Liming patents
Qiu Liming is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Qiu Liming |
| Total patents | 4 |
| First publication | Apr 16, 2020 |
| Latest publication | Mar 8, 2022 |
Notable patents
Publications ranked by popularity score, then publication date.
Measurement-while-drilling method and device for assessing outburst risk of coal seam
US-10947842-B2 · Mar 16, 2021 · US
Measurement-while-drilling method and device for assessing outburst risk of coal seam
US-2020200004-A1 · Jun 25, 2020 · US
Measurement-while-drilling method and device for obtaining coal seam gas parameter
US-2020116016-A1 · Apr 16, 2020 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ China Mining | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B47/024 | 4 |
| E21B47/07 | 4 |
| E21B47/06 | 4 |
| E21B49/00 | 4 |
| E21B47/14 | 4 |