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Patent applications and USPTO patent grants for Johns; Allan T..The latest application filed is for "equipment for and methods of locating the position of a fault on a power transmission line".
Patent | Date |
---|---|
Equipment for and methods of locating the position of a fault on a power transmission line Grant 5,072,403 - Johns December 10, 1 | 1991-12-10 |
Method and apparatus for detecting and discriminating faults in transmission circuits Grant 4,922,368 - Johns May 1, 1 | 1990-05-01 |
Methods and apparatus for fault detection Grant 4,352,137 - Johns September 28, 1 | 1982-09-28 |
Protection of electrical power supply systems Grant 4,261,038 - Johns , et al. April 7, 1 | 1981-04-07 |
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