Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303014 | Casing strings and methods of using such strings in subterranean cementing operations | B. Raghava Reddy, Simon Turton, Karl W. Blanchard, Ronald R. Faul, Michael G. Crowder +2 more | 2007-12-04 |
| 7290611 | Methods and systems for cementing wells that lack surface casing | Simon Turton, Karl W. Blanchard, Ronald R. Faul, Michael G. Crowder, Henry E. Rogers +1 more | 2007-11-06 |
| 7284608 | Casing strings and methods of using such strings in subterranean cementing operations | B. Raghava Reddy, Simon Turton, Karl W. Blanchard, Ronald R. Faul, Michael G. Crowder +2 more | 2007-10-23 |
| 7252147 | Cementing methods and systems for initiating fluid flow with reduced pumping pressure | Karl W. Blanchard, Simon Turton, Ronald R. Faul, Henry E. Rogers, James E. Griffith +1 more | 2007-08-07 |
| 6973969 | Apparatus and methods for preventing or limiting rotation of cementing plugs | Craig W. Roddy | 2005-12-13 |
| 6868908 | Anti-rotation method and apparatus for limiting rotation of cementing plugs | — | 2005-03-22 |
| 5829522 | Sand control screen having increased erosion and collapse resistance | Colby M. Ross | 1998-11-03 |
| 5566757 | Method and apparatus for setting sidetrack plugs in open or cased well bores | Robert B. Carpenter, Jerry L. Logan, David F. Laurel | 1996-10-22 |
| 5368103 | Method of setting a balanced cement plug in a borehole | James F. Heathman, Robert B. Carpenter, Kenneth P. Marcel, Robert R. Siffert, Charles J. Rimer | 1994-11-29 |
| 5277253 | Hydraulic set casing packer | Richard L. Giroux, Alan B. Duell | 1994-01-11 |
| 5261492 | Well casing apparatus and method | Alan B. Duell, Jonathan Michael Garrett, Chris P. Christensen, Douglas K. Vrooman | 1993-11-16 |