Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11970909 | Drill bit of a ground drilling device with an enlargement of a receptacle for fastening an attachment thereto and method for producing same | — | 2024-04-30 |
| 11767716 | Drilling head for a percussive displacement ground drilling device and use of a drilling head for a percussive displacement ground drilling device | — | 2023-09-26 |
| 11280134 | Ground drilling device, method for making a ground drilling device, method for maintaining a ground drilling device, and use of a ground drilling device | — | 2022-03-22 |
| 11268324 | Ground drilling device, method for the production and use thereof | — | 2022-03-08 |
| 10828763 | Percussion drilling device | Sadri Samadraxha | 2020-11-10 |
| 10480246 | Percussion boring device | Gerhard Völkel, Gerhard Balve | 2019-11-19 |
| 9938769 | Ram boring device | — | 2018-04-10 |
| 9328560 | Ground-drilling device | — | 2016-05-03 |
| 9243456 | Earth drilling device | Gerhard Völkel, Peter Grass, Meinolf Rameil | 2016-01-26 |
| 9206682 | Boring element for a ground boring device | Peter Grass, Gerhard Völkel, Andreas Riekes, Frank Prutti | 2015-12-08 |
| 9074423 | Method and system for inserting a pipe into an underground borehole | — | 2015-07-07 |
| 9016404 | Ram boring device | — | 2015-04-28 |
| 8967911 | Boring system | — | 2015-03-03 |
| 8944189 | Rod coupling having a sacrificial element | — | 2015-02-03 |
| 8757931 | Pipe guide adapter | — | 2014-06-24 |
| 8443917 | Insertion coupling for a boring rod assembly and a boring rod assembly | — | 2013-05-21 |
| 8336644 | Rod coupling having a pin | — | 2012-12-25 |
| 8240638 | Rod assembly driver | Gerhard Völkel, Frank Prutti, Sebastian Leier | 2012-08-14 |
| 8235148 | Thread retention for an earth boring device | — | 2012-08-07 |
| 8231307 | System and method for tightening string sections to form a string | — | 2012-07-31 |
| 7954565 | Thread retention for an earth boring device | — | 2011-06-07 |
| 7938205 | Boring head method and boring head for a ground boring device | — | 2011-05-10 |
| 7874382 | Pneumatically reversible ram boring device | Gerhard Balve | 2011-01-25 |
| 7726028 | Cutting device for pipelines | Elmar Koch, Martin Köper | 2010-06-01 |
| 7270197 | Steerable soil displacement hammer | — | 2007-09-18 |