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Patent applications and USPTO patent grants for Ziolkowski; Christopher J..The latest application filed is for "long range data transmitter for horizontal directional drilling".
Patent | Date |
---|---|
Long range data transmitter for horizontal directional drilling Grant 6,968,735 - Ziolkowski , et al. November 29, 2 | 2005-11-29 |
Long range data transmitter for horizontal directional drilling App 20040154833 - Ziolkowski, Christopher J. ;   et al. | 2004-08-12 |
Electronic marker for metallic valve box covers Grant 6,690,278 - Ziolkowski , et al. February 10, 2 | 2004-02-10 |
Electronic marker for metallic valve box covers App 20030122674 - Ziolkowski, Christopher J. ;   et al. | 2003-07-03 |
Adaptive system for predictive control of district pressure regulators Grant 6,112,137 - McCarty , et al. August 29, 2 | 2000-08-29 |
Remote cathodic protection monitoring system Grant 5,999,107 - Cooper , et al. December 7, 1 | 1999-12-07 |
Pneumatic pipe inspection device Grant 4,646,787 - Rush , et al. March 3, 1 | 1987-03-03 |
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