Exeter
United Kingdom
8
2026-04-23
The entities that hold a legal rights for patent applications filed by inventor Petherick Stephen John:
Stephen John Petherick from Exeter, GB has applied for patents for these inventions. The list has both pending applications and granted patents:
Data Encoding in a Low Frequency Magnetic Field
#2 | 2025-07-24Data Encoding in a Low Frequency Magnetic Field
#3 | 2025-07-24Cable Locating System with Data Encoding
#4 | 2017-04-06Signal select in underground line location
#5 | 2017-01-26System and method for locating a marker using a locator with multiple transmitters
#6 | 2017-01-12Signal processing for a cable locating instrument
#7 | 2013-10-31Signal select in underground line location
#8 | 2005-10-11Pipeline mapping and interrupter therefor
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