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Patent applications and USPTO patent grants for Hall; Douglas D..The latest application filed is for "portable interconnection system for incompatible audio communication networks".
Patent | Date |
---|---|
Portable interconnection system for incompatible audio communication networks Grant 7,436,951 - Pflasterer , et al. October 14, 2 | 2008-10-14 |
Downhole tubular splitter assembly and method Grant 7,066,267 - Hall June 27, 2 | 2006-06-27 |
Portable interconnection system for incompatible audio communication networks App 20050195969 - Pflasterer, Peter W. ;   et al. | 2005-09-08 |
Downhole tubular splitter assembly and method App 20050077048 - Hall, Douglas D. | 2005-04-14 |
Radial penetrator assembly and method App 20050067167 - Hall, Douglas D. ;   et al. | 2005-03-31 |
Rotating drilling head with spaced apart seals Grant 6,016,880 - Hall , et al. January 25, 2 | 2000-01-25 |
Underwater devices with remotely operated latch means Grant 4,405,263 - Hall September 20, 1 | 1983-09-20 |
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