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Patent applications and USPTO patent grants for Vargus; Gregory W..The latest application filed is for "downhole sealing tools and method of use".
Patent | Date |
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Downhole sealing tools and method of use Grant 7,048,066 - Ringgenberg , et al. May 23, 2 | 2006-05-23 |
Downhole sealing tools and method of use Grant 6,966,386 - Ringgenberg , et al. November 22, 2 | 2005-11-22 |
Multiple zones frac tool Grant 6,896,061 - Hriscu , et al. May 24, 2 | 2005-05-24 |
Downhole sealing tools and method of use App 20040069503 - Ringgenberg, Paul D. ;   et al. | 2004-04-15 |
Downhole sealing tools and method of use App 20040069485 - Ringgengberg, Paul D. ;   et al. | 2004-04-15 |
Multiple zones frac tool App 20030183391 - Hriscu, Iosif J. ;   et al. | 2003-10-02 |
Frac plug with caged ball Grant 6,491,116 - Berscheidt , et al. December 10, 2 | 2002-12-10 |
Frac plug with caged ball App 20020096365 - Berscheidt, Kevin T. ;   et al. | 2002-07-25 |
Frac plug with caged ball Grant 6,394,180 - Berscheidt , et al. May 28, 2 | 2002-05-28 |
Low pressure, high temperature composite bridge plug Grant 6,220,349 - Vargus , et al. April 24, 2 | 2001-04-24 |
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