Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9328608 | Driven latch mechanism | Christopher L. Drenth, George Iondov | 2016-05-03 |
| 9234398 | Core drilling tools with retractably lockable driven latch mechanisms | Christopher L. Drenth, George Iondov | 2016-01-12 |
| 8794355 | Driven latch mechanism | Christopher L. Drenth, George Iondov | 2014-08-05 |
| 8770319 | Pump-in seal | Christopher L. Drenth, George Iondov | 2014-07-08 |
| 8485280 | Core drilling tools with retractably lockable driven latch mechanisms | Christopher L. Drenth, George Iondov | 2013-07-16 |
| D676877 | Tube loader | Christopher L. Drenth, Jay S. Averett, Tony Wiki, Cliff Wiki | 2013-02-26 |
| 8127864 | Hydro-percussive mechanisms for drilling systems | Christopher L. Drenth | 2012-03-06 |
| 7921926 | Jointed spearhead assembly | Christopher L. Drenth, Anthony Lachance | 2011-04-12 |
| 7900716 | Vibratory unit for drilling systems | Christopher L. Drenth, Anthony Lachance | 2011-03-08 |
| D624564 | Spearhead base | Christopher L. Drenth, Sacha Tillack | 2010-09-28 |
| D622741 | Spearhead | Christopher L. Drenth, Sacha Tillack | 2010-08-31 |
| D622293 | Spearhead | Christopher L. Drenth, Sacha Tillack | 2010-08-24 |
| D622294 | Spearhead base | Christopher L. Drenth, Sacha Tillack | 2010-08-24 |