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Patent applications and USPTO patent grants for Brennels; Chad.The latest application filed is for "cement compositions comprising lignite grafted fluid loss control additives".
Patent | Date |
---|---|
Cement compositions comprising lignite grafted fluid loss control additives Grant 7,388,045 - Lewis , et al. June 17, 2 | 2008-06-17 |
Method of using lignite grafted fluid loss control additives in cementing operations Grant 7,360,598 - Lewis , et al. April 22, 2 | 2008-04-22 |
Foamed treatment fluids and associated methods Grant 7,134,497 - Chatterji , et al. November 14, 2 | 2006-11-14 |
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