Device for sinking a vertical borehole
US-12553286-B2 · Feb 17, 2026 · US
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Rennkamp Patrick patents
Rennkamp Patrick is listed as an inventor on 5 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Rennkamp Patrick |
| Total patents | 5 |
| First publication | May 11, 2023 |
| Latest publication | Feb 17, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Device for emptying conveying buckets during the sinking of shafts
US-2026002444-A1 · Jan 1, 2026 · US
Device for sinking a vertical borehole
US-2025198284-A1 · Jun 19, 2025 · US
Drill head and method for producing a vertical borehole in the ground
US-12031385-B2 · Jul 9, 2024 · US
Drill head and method for producing a vertical borehole in the ground
US-2023147209-A1 · May 11, 2023 · 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 |
|---|---|
| Herrenknecht Ag | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21D1/06 | 4 |
| E21B4/18 | 2 |
| E21B10/602 | 2 |
| E21B10/42 | 2 |
| E21D9/1006 | 2 |