Device for sinking a vertical borehole
US-12553286-B2 · Feb 17, 2026 · US
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Feisst Albert patents
Feisst Albert is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Feisst Albert |
| Total patents | 3 |
| First publication | May 4, 2023 |
| Latest publication | Feb 17, 2026 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Herrenknecht Ag | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G01N1/2202 | 2 |
| E21F17/18 | 2 |
| E21D9/112 | 2 |
| E21D9/0642 | 2 |
| G01N1/2247 | 2 |