DHT Technologies, LTD
Records under this name other than patents DHT Technologies, LTD holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 7 of 7 · Back to DHT Technologies, LTD
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,244,363 | Retrieval head for a drill bit composed of a plurality of bit segments Lapsed on the fee record Ended Jun 12, 2009 · From the USPTO record | Lapsed on the fee record | Ended Jun 12, 2009 | From the USPTO record |
| US 6,206,114 | Tool for transporting cutting means to and from a ground drill Lapsed on the fee record Ended Mar 27, 2009 · From the USPTO record | Lapsed on the fee record | Ended Mar 27, 2009 | From the USPTO record |
| US 6,173,796 | Sleeve for orientating a tool Lapsed on the fee record Ended Jan 16, 2009 · From the USPTO record | Lapsed on the fee record | Ended Jan 16, 2009 | From the USPTO record |
| US 6,059,053 | Retraction system for a latching mechanism of a tool Lapsed on the fee record Ended May 9, 2008 · From the USPTO record | Lapsed on the fee record | Ended May 9, 2008 | From the USPTO record |
| US 6,045,171 | Spear head assembly Lapsed on the fee record Ended Apr 4, 2008 · From the USPTO record | Lapsed on the fee record | Ended Apr 4, 2008 | From the USPTO record |
| US 6,039,129 | Locking system for a firing mechanism of a downhole tool Lapsed on the fee record Ended Mar 21, 2008 · From the USPTO record | Lapsed on the fee record | Ended Mar 21, 2008 | From the USPTO record |
| US 6,155,360 | Retractable drill bit system Lapsed on the fee record Ended Dec 5, 2004 · From the USPTO record | Lapsed on the fee record | Ended Dec 5, 2004 | From the USPTO record |