Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7728306 | Neutron logging tool having source and target with deuterium-tritium gas admixture | John Barry Fitzgerald | 2010-06-01 |
| 7674624 | Method for real-time determination of volume fractions of a production fluid in a hydrocarbon reservoir | Lalitha Venkataramanan | 2010-03-09 |
| 7669468 | Measuring mud flow velocity using pulsed neutrons | Peter Wraight, Roger Griffiths | 2010-03-02 |
| 7366615 | Methods and apparatus using both nuclear capture and inelastic spectroscopy in deriving elemental concentrations | Susan Herron, James A. Grau, Bradley A. Roscoe, Michael M. Herron | 2008-04-29 |
| 7231305 | Flow rate determination | Lalitha Venkataramanan | 2007-06-12 |
| 6988547 | Method and system of fluid analysis and control in hydrocarbon well | Anthony Robert Holmes Goodwin, Gary Oddie, Robert L. Kleinberg, Douglas D. Griffin | 2006-01-24 |
| 6854341 | Flow characteristic measuring apparatus and method | Gary Oddie, John Barry Fitzgerald | 2005-02-15 |
| 6776054 | Flow meter for multi-phase mixtures | John William James Ferguson, John Barry Fitzgerald, Anthony Robert Holmes Goodwin, Gerald Meeten, Sarah Pelham | 2004-08-17 |
| 6755086 | Flow meter for multi-phase mixtures | Philippe Salamitou, John William James Ferguson, John Barry Fitzgerald, Anthony Robert Holmes Goodwin, Gerald Meeten +1 more | 2004-06-29 |
| 6612171 | Gravity measuring apparatus | Robert L. Kleinberg, Douglas D. Griffin | 2003-09-02 |
| 6590647 | Physical property determination using surface enhanced raman emissions | — | 2003-07-08 |
| 6490916 | Method and system of fluid analysis and control in a hydrocarbon well | Anthony Robert Holmes Goodwin, Gary Oddie, Robert L. Kleinberg, Douglas D. Griffin | 2002-12-10 |
| 6253847 | Downhole power generation | — | 2001-07-03 |
| 6216532 | Gas flow rate measurement | Bernard Theron | 2001-04-17 |
| 6075611 | Methods and apparatus utilizing a derivative of a fluorescene signal for measuring the characteristics of a multiphase fluid flow in a hydrocarbon well | Elizabeth B. Dussan V., Xu Wu, Oliver C. Mullins, Richard Gaylor, Rogerio Tadeu Ramos | 2000-06-13 |
| 6016191 | Apparatus and tool using tracers and singles point optical probes for measuring characteristics of fluid flow in a hydrocarbon well and methods of processing resulting signals | Rogerio Tadeu Ramos | 2000-01-18 |
| RE36012 | Accelerator-based methods and apparatus for measurement-while-drilling | William A. Loomis, Jerome A. Truax, Wolfgang Ziegler, S. Zema Chowdhuri, Benoit Couet +6 more | 1998-12-29 |
| 5689540 | X-ray water fraction meter | Arthur J. Becker | 1997-11-18 |
| 5680431 | X-ray generator | Joseph Steven Pietras, III | 1997-10-21 |
| 5543617 | Method of measuring flow velocities using tracer techniques | Bradley A. Roscoe, Jeffrey S. Schweitzer | 1996-08-06 |
| 5539225 | Accelerator-based methods and apparatus for measurement-while-drilling | William A. Loomis, Jerome A. Truax, Wolfgang Ziegler, S. Zema Chowdhuri, Benoit Couet +6 more | 1996-07-23 |
| 5532482 | Method and apparatus for well logging using an accelerator neutron source | — | 1996-07-02 |
| 5523939 | Borehole logging tool including a particle accelerator | — | 1996-06-04 |
| 5515259 | Inductively charged coaxial capacitor accelerator | — | 1996-05-07 |
| 5325284 | Electrostatic particle accelerator having linear axial and radial fields | — | 1994-06-28 |