Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10480256 | Riser system for coupling selectable modules to the riser | Roger Sverre Stave | 2019-11-19 |
| 10053944 | Riser restrictor device | — | 2018-08-21 |
| 9322230 | Direct drive fluid pump for subsea mudlift pump drilling systems | Emil R. Talamo | 2016-04-26 |
| 8851181 | Method for circulating a fluid entry out of a subsurface wellbore without shutting in the wellbore | — | 2014-10-07 |
| 8413722 | Method for circulating a fluid entry out of a subsurface wellbore without shutting in the wellbore | — | 2013-04-09 |
| 7089778 | Modular gas measuring system | Horst Rabenecker, Thomas Treptow, Matthias Martens, Robert Kessel, Fritz Thiele | 2006-08-15 |
| 6012532 | Method and apparatus for prevention, suppression or mitigation of explosions in confined subterranean chambers | Karl F. Kiefer, Gerard T. Pittard | 2000-01-11 |
| 5624206 | Apparatus and method for supporting pipe main repair tools in an excavation | Curtis E. Leitko, Jr., Gerard T. Pittard, Terry P. Clifton, Gerald Rockower | 1997-04-29 |
| 5462077 | Apparatus and method for shutting off fluid flow in a pipe main | Curtis E. Leitko, Jr., Gerard T. Pittard, Terry P. Clifton, Gerald Rockower | 1995-10-31 |
| 4949795 | Rotary rapid excavation system | William C. McDonald, Gerard T. Pittard | 1990-08-21 |
| 4632191 | Steering system for percussion boring tools | William J. McDonald, Gerard T. Pittard, William C. Maurer, Gregory C. Givler | 1986-12-30 |
| 4621698 | Percussion boring tool | Gerard T. Pittard, William J. McDonald, William C. Maurer, Gregory C. Givler | 1986-11-11 |