Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10036489 | Hydrate deposit inhibition with surface-chemical combination | Gaurav Bhatnagar, Daniel Lee Crosby, Zhongxin Huo | 2018-07-31 |
| 9926467 | Superhydrophobic compositions and coating process for the internal surface of tubular structures | Michael A. Miller, Ronghua Wei | 2018-03-27 |
| 9752416 | Method of preventing hydrate formation in open water capture devices | Karl Gregory Anderson, Gaurav Bhatnagar, Sujatha Degaleesan | 2017-09-05 |
| 9701869 | Superhydrophobic compositions and coating process for the internal surface of tubular structures | Michael A. Miller, Ronghua Wei | 2017-07-11 |
| 9121540 | Superhydrophobic compositions and coating process for the internal surface of tubular structures | Michael A. Miller, Ronghua Wei | 2015-09-01 |
| 9004177 | Subsea production systems and methods | — | 2015-04-14 |
| 8814473 | Pipe transport system with hydrophobic wall | Ajay Praful Mehta, David Joseph Peters | 2014-08-26 |
| 7918283 | Method and apparatus for a cold flow subsea hydrocarbon production system | Szabolcs Roland Balkanyi, James George Broze, Joseph Oscar Esparza, Ajay Praful Mehta, Chien Kuei Tsai +2 more | 2011-04-05 |
| 7530398 | Method and apparatus for a cold flow subsea hydrocarbon production system | Szabolcs Roland Balkanyi, James George Broze, Jose Oscar Esparza, Ajay Praful Mehta, Chien Kuei Tsai +2 more | 2009-05-12 |
| 6382032 | Apparatus and method for measuring flow of gas with entrained liquids | Steven Svedeman | 2002-05-07 |
| 6135723 | Efficient Multistage pump | — | 2000-10-24 |
| 5871340 | Apparatus for cooling high-pressure boost high gas-fraction twin-screw pumps | — | 1999-02-16 |
| 5779451 | Power efficient multi-stage twin screw pump | — | 1998-07-14 |
| 5660617 | System and method for maintaining multiphase flow with minimal solids degradation | — | 1997-08-26 |
| 5625293 | Determination of the watercut of a multiphase flow directly from measured microwave frequency dielectric properties | John D. Marrelli, Joseph D. Stafford, David A. Helms, Michael G. Durrett | 1997-04-29 |
| 5563518 | Method of standard dielectric water cut measurement with small gas fraction present | Michael G. Durrett, Wayne F. Warren, Raymond C. Hedges | 1996-10-08 |
| 5483171 | Determination of water cut and gas-fraction in oil/water/gas streams | David A. Helms, John D. Marrelli | 1996-01-09 |
| 5473256 | Combination microwave waveguide and pressure barrier | Joseph D. Stafford, David A. Helms | 1995-12-05 |
| 5412326 | Means and method for analyzing a petroleum stream | John D. Marrelli, Michael G. Durrett, David A. Helms, Lisa L. Pepin | 1995-05-02 |
| 5396807 | Means to determine liquid flow rate with gas present | Earl L. Dowty | 1995-03-14 |
| 5315117 | Volume meter system | David A. Helms, Michael G. Durrett | 1994-05-24 |
| 5251488 | Multiphase volume and flow test instrument | John P. Haberman | 1993-10-12 |
| 5195380 | Petroleum stream analyzing means and method | Michael G. Durrett, Earl L. Dowty, Gary E. Collier, Clifford L. Redus, Steven Miles Stockman | 1993-03-23 |
| 5107219 | Means and method for determining the conductance of a fluid | John D. Marrelli, Lisa L. Pepin, Farhan Siddiqui, Joseph D. Stafford | 1992-04-21 |
| 5076705 | Static mixing system with high turndown ratios to minimize pressure drops | Paul Ellis Brickhouse, Michael G. Durrett | 1991-12-31 |