Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12038402 | Moisture detection systems and devices | Martha Lemke, Paul Latten | 2024-07-16 |
| 11988797 | Moisture detection systems and devices | Martha Lemke, Paul Latten | 2024-05-21 |
| 8245779 | Centralizer apparatus | Lars Pedersen | 2012-08-21 |
| 7530401 | Tool trap assembly and method | Max H. Smith, Douglas B. Leeth | 2009-05-12 |
| 7165635 | Deflection swivel and method | Vernon E. Kauffman, Douglass B. Leeth, Max H. Smith | 2007-01-23 |
| 7131497 | Articulated drillstring entry apparatus and method | Charles M. Helms, Vernon E. Kauffman, Douglas B. Leeth, Max H. Smith | 2006-11-07 |