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Patent applications and USPTO patent grants for Webber; Roy A..The latest application filed is for "extended particle size distribution ceramic fracturing proppant".
Patent | Date |
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Extended particle size distribution ceramic fracturing proppant Grant 7,067,445 - Webber , et al. June 27, 2 | 2006-06-27 |
Extended particle size distribution ceramic fracturing proppant App 20050082062 - Webber, Roy A. ;   et al. | 2005-04-21 |
Extended particle size distribution ceramic fracturing proppant Grant 6,780,804 - Webber , et al. August 24, 2 | 2004-08-24 |
Extended Particle Size Distribution Ceramic Fracturing Proppant App 20040147388 - Webber, Roy A. ;   et al. | 2004-07-29 |
Electrode blocks and block assemblies Grant 5,151,918 - Argent , et al. September 29, 1 | 1992-09-29 |
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