Allan T. Johns

Person

Swindon, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Method of locating the position of a fault on a power transmission
- Patent number 5,825,189
- Issue date Oct 20, 1998
- GEC Alsthom Limited
- Allan Thomas Johns
- G01 - MEASURING TESTING
Information Patent Grant
Detecting faults in power lines
- Patent number 5,796,257
- Issue date Aug 18, 1998
- The University of Bath
- Allan Thomas Johns
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Equipment for and methods of locating the position of a fault on a...
- Patent number 5,072,403
- Issue date Dec 10, 1991
- GEC Alsthom Limited
- Allan T. Johns
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for detecting and discriminating faults in tra...
- Patent number 4,922,368
- Issue date May 1, 1990
- National Research Development Corporation
- Allan T. Johns
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical supply line protection apparatus
- Patent number 4,782,421
- Issue date Nov 1, 1988
- National Research Development Corporation
- Allan T. Johns
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protection of electrical power supply systems
- Patent number 4,617,636
- Issue date Oct 14, 1986
- National Research Development Corporation
- Allan T. Johns
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Methods and apparatus for fault detection
- Patent number 4,352,137
- Issue date Sep 28, 1982
- The General Electric Company Limited
- Allan T. Johns
- G01 - MEASURING TESTING
Information Patent Grant
Protection of electrical power supply systems
- Patent number 4,261,038
- Issue date Apr 7, 1981
- National Research Development Corporation
- Allan T. Johns
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Allan T. Johns

Person

Patents Grantslast 30 patents

Method of locating the position of a fault on a power transmission

Detecting faults in power lines

Equipment for and methods of locating the position of a fault on a...

Method and apparatus for detecting and discriminating faults in tra...

Electrical supply line protection apparatus

Protection of electrical power supply systems

Methods and apparatus for fault detection

Protection of electrical power supply systems