Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7219722 | Apparatus and methods for powering downhole electrical devices | Roger Fincher, Peter Aronstam | 2007-05-22 |
| 7188678 | Expandable composite tubulars | Bennett M. Richard, Peter Aronstam | 2007-03-13 |
| 7174975 | Control systems and methods for active controlled bottomhole pressure systems | Sven Krueger, Volker Krueger, Harald Grimmer, Roger Fincher, Peter Aronstam +1 more | 2007-02-13 |
| 7114581 | Active controlled bottomhole pressure system & method | Peter Aronstam, Volker Krueger, Sven Krueger, Harald Grimmer, Roger Fincher +1 more | 2006-10-03 |
| 7104317 | Expandable composition tubulars | Bennett M. Richard, Peter Aronstam | 2006-09-12 |
| 7096975 | Modular design for downhole ECD-management devices and related methods | Peter Aronstam, Volker Krueger, Sven Krueger, Harald Grimmer, Roger Fincher +1 more | 2006-08-29 |
| 7055627 | Wellbore fluid circulation system and method | Peter Fontana, Roger Fincher, Peter Aronstam | 2006-06-06 |
| 6854532 | Subsea wellbore drilling system for reducing bottom hole pressure | Roger Fincher, Roland May, Peter Fontana, James W. Macfarlane | 2005-02-15 |
| 6648081 | Subsea wellbore drilling system for reducing bottom hole pressure | Roger Fincher, Roland May, Peter Fontana, James W. Macfarlane | 2003-11-18 |
| 6415877 | Subsea wellbore drilling system for reducing bottom hole pressure | Roger Fincher, Roland May, Peter Fontana, James W. Macfarlane | 2002-07-09 |
| 6196336 | Method and apparatus for drilling boreholes in earth formations (drilling liner systems) | Roger Fincher, Friedhelm Makohl, Detlef Hahn | 2001-03-06 |
| 6167965 | Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores | John L. Bearden, John W. Harrell, Jerald R. Rider, Gordon Besser, Michael H. Johnson +5 more | 2001-01-02 |
| 5762149 | Method and apparatus for well bore construction | Joseph F. Donovan, Michael H. Johnson, Daniel J. Turick, Wallace W. F. Leung | 1998-06-09 |
| 5667023 | Method and apparatus for drilling and completing wells | John W. Harrell, Michael H. Johnson, Daniel J. Turick | 1997-09-16 |
| H55 | Method for improved mud pulse telemetry | Mark S. Ramsey | 1986-05-06 |
| 4416494 | Apparatus for maintaining a coiled electric conductor in a drill string | Leon Robinson | 1983-11-22 |