Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9243480 | System and method for activating a down hole tool | Nicholas Frederick Budler, John Key | 2016-01-26 |
| 9238954 | Pressure activated down hole systems and methods | Nicholas Frederick Budler, David D. Szarka | 2016-01-19 |
| 9238952 | Annular isolation with tension-set external mechanical casing (EMC) packer | Henry E. Rogers, Steven L. Holden | 2016-01-19 |
| 9169705 | Pressure relief-assisted packer | Lonnie Carl Helms | 2015-10-27 |
| 9033056 | Pressure activated down hole systems and methods | Nicholas Frederick Budler, David D. Szarka | 2015-05-19 |
| 9027653 | Secondary system and method for activating a down hole device | Nicholas Frederick Budler, Kumaran Palanivel | 2015-05-12 |
| 8991486 | Remotely activated down hole systems and methods | Lonnie Carl Helms, Nicholas Frederick Budler | 2015-03-31 |
| 8708056 | External casing packer and method of performing cementing job | Lonnie Carl Helms, Nicholas Frederick Budler, John Key | 2014-04-29 |
| 8646537 | Remotely activated downhole apparatus and methods | Timothy R. Tips, James R. Longbottom, Ricky L. Covington, Michael Linley Fripp, Lonnie Carl Helms +2 more | 2014-02-11 |
| 8616276 | Remotely activated downhole apparatus and methods | Timothy R. Tips, James R. Longbottom, Ricky L. Covington, Michael Linley Fripp, Lonnie Carl Helms +2 more | 2013-12-31 |
| 8215404 | Stage cementing tool | Gary Joe Makowiecki, Don R. Smith, Donald W. Winslow | 2012-07-10 |
| 7472752 | Apparatus and method for forming multiple plugs in a wellbore | Henry E. Rogers | 2009-01-06 |
| 6880636 | Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring | Henry E. Rogers, Michael Dodson, Earl Webb, David D. Szarka | 2005-04-19 |
| 6772835 | Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring | Henry E. Rogers, Michael Dodson, Earl Webb, David D. Szarka | 2004-08-10 |