Issued Patents All Time
Showing 51–75 of 90 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7409991 | Methods of using casing strings in subterranean cementing operations | B. Raghava Reddy, Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul +2 more | 2008-08-12 |
| 7404440 | Methods of using casing strings in subterranean cementing operations | B. Raghava Reddy, Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul +2 more | 2008-07-29 |
| 7401646 | Methods for reverse-circulation cementing in subterranean formations | Anthony M. Badalamenti, Karl W. Blanchard, Michael G. Crowder, Ronald R. Faul, James E. Griffith +1 more | 2008-07-22 |
| 7389815 | Methods for reverse-circulation cementing in subterranean formations | Anthony M. Badalamenti, Karl W. Blanchard, Michael G. Crowder, Ronald R. Faul, James E. Griffith +1 more | 2008-06-24 |
| 7357181 | Apparatus for autofill deactivation of float equipment and method of reverse cementing | Earl Webb | 2008-04-15 |
| 7350578 | Diverter plugs for use in well bores and associated methods of use | David D. Szarka, William W. Gilbert, David Burkhead, Nicholas C. Braun, Todd D. Cooper +1 more | 2008-04-01 |
| 7322412 | Casing shoes and methods of reverse-circulation cementing of casing | Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul, Michael G. Crowder +2 more | 2008-01-29 |
| 7322413 | Equalizer valve assembly | David D. Szarka, Brett Fears | 2008-01-29 |
| 7322432 | Fluid diverter tool and method | Nicholas C. Braun, Steven L. Holden | 2008-01-29 |
| 7303008 | Methods and systems for reverse-circulation cementing in subterranean formations | Anthony M. Badalamenti, Karl W. Blanchard, Michael G. Crowder, Ronald R. Faul, James E. Griffith +1 more | 2007-12-04 |
| 7303014 | Casing strings and methods of using such strings in subterranean cementing operations | B. Raghava Reddy, Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul +2 more | 2007-12-04 |
| 7290611 | Methods and systems for cementing wells that lack surface casing | Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul, Michael G. Crowder +1 more | 2007-11-06 |
| 7290612 | Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore | Earl Webb | 2007-11-06 |
| 7284608 | Casing strings and methods of using such strings in subterranean cementing operations | B. Raghava Reddy, Anthony M. Badalamenti, Simon Turton, Karl W. Blanchard, Ronald R. Faul +2 more | 2007-10-23 |
| 7255162 | Methods and apparatus for use in subterranean cementing operations | Michael D. Stevens, David D. Szarka, Kevin T. Berscheidt, Brett Fears | 2007-08-14 |
| 7252147 | Cementing methods and systems for initiating fluid flow with reduced pumping pressure | Anthony M. Badalamenti, Karl W. Blanchard, Simon Turton, Ronald R. Faul, James E. Griffith +1 more | 2007-08-07 |
| 7225871 | Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore | Earl Webb, Karl W. Blanchard | 2007-06-05 |
| 7204304 | Removable surface pack-off device for reverse cementing applications | Earl Webb | 2007-04-17 |
| 7080687 | Anti-rotation method and apparatus for limiting rotation of cementing plugs | Charles Butterfield, Seth Richard MOORE, Donald Garrett, Ronald Holubec | 2006-07-25 |
| 6957704 | Limit clamp for use with casing attachments | Earl Webb | 2005-10-25 |
| 6880636 | Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring | Michael Dodson, Earl Webb, David D. Szarka, Frank Acosta | 2005-04-19 |
| 6810958 | Circulating cementing collar and method | David D. Szarka | 2004-11-02 |
| 6796377 | Anti-rotation apparatus for limiting rotation of cementing plugs | Charles Butterfield, Earl Webb, Michael D. Stevens | 2004-09-28 |
| 6772835 | Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring | Michael Dodson, Earl Webb, David D. Szarka, Frank Acosta | 2004-08-10 |
| 6758281 | Methods and apparatus for creating a downhole buoyant casing chamber | Bobby L. Sullaway | 2004-07-06 |