Zachman; James R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zachman; James R..The latest application filed is for "reorienting annular debris barrier".
- Zachman; James R. - The Woodlands TX US
| Patent | Date |
|---|---|
| Annular gap debris barrier Grant 8,794,313 - Heckel , et al. August 5, 2 | 2014-08-05 |
| Reorienting annular debris barrier Grant 8,678,084 - Heckel , et al. March 25, 2 | 2014-03-25 |
| Snap mount annular debris barrier Grant 8,631,863 - Heckel , et al. January 21, 2 | 2014-01-21 |
| Annular Gap Debris Barrier App 20130032332 - Heckel; Donald T. ; et al. | 2013-02-07 |
| Snap Mount Annular Debris Barrier App 20130032330 - Heckel; Donald T. ; et al. | 2013-02-07 |
| Reorienting Annular Debris Barrier App 20130032331 - Heckel; Donald T. ; et al. | 2013-02-07 |
| Workstring and a method for gravel packing Grant 7,373,979 - Coronado , et al. May 20, 2 | 2008-05-20 |
| High pressure ball valve seal assembly App 20070069173 - Zachman; James R. ; et al. | 2007-03-29 |
| Method of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions Grant 6,983,796 - Bayne , et al. January 10, 2 | 2006-01-10 |
| Workstring and a method for gravel packing App 20050139355 - Coronado, Martin P. ; et al. | 2005-06-30 |
| Crossover Tool Grant 6,702,020 - Zachman , et al. March 9, 2 | 2004-03-09 |
| Crossover Tool App 20030192694 - Zachman, James R. ; et al. | 2003-10-16 |
| Method of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions App 20020007948 - Bayne, Christian F. ; et al. | 2002-01-24 |
| Failsafe liner installation assembly and method Grant 5,360,069 - Schmuck , et al. November 1, 1 | 1994-11-01 |
| Combination gravel packing device and method Grant 4,541,484 - Salerni , et al. September 17, 1 | 1985-09-17 |
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