English Electric Valve Company Limited

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Patents Grantslast 30 patents

Information Patent Grant
RF radiation absorbing material disposed between the cathode and an...
- Patent number 5,691,667
- Issue date Nov 25, 1997
- English Electric Valve Co., Ltd.
- Alan Hugh Pickering
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Laser arrangement including effeciency improving gas reservoirs in...
- Patent number 5,450,433
- Issue date Sep 12, 1995
- English Electric Valve Company Limited
- Ewan S. Livingstone
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetron anode and method of manufacturing anode
- Patent number 5,061,878
- Issue date Oct 29, 1991
- English Electric Valve Company Limited
- Peter J. Hall
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser apparatus having a discharge triggering device inside a laser...
- Patent number 4,949,354
- Issue date Aug 14, 1990
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark gap devices
- Patent number 4,935,666
- Issue date Jun 19, 1990
- English Electric Valve Co., Ltd.
- Garry P. McCann
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image intensifiers and method of producing same
- Patent number RE33183
- Issue date Mar 20, 1990
- English Electric Valve Company, Limited
- David G. Holland
- 313 - Electric lamp and discharge devices
Information Patent Grant
Laser apparatus
- Patent number 4,907,243
- Issue date Mar 6, 1990
- English Electric Valve Company, Ltd.
- Hugh Menown
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Imaging apparatus with flexible interface for controlling different...
- Patent number 4,896,215
- Issue date Jan 23, 1990
- English Electric Valve Company Limited
- Christopher J. Morcom
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Discharge tubes
- Patent number 4,896,073
- Issue date Jan 23, 1990
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser apparatus
- Patent number 4,890,295
- Issue date Dec 26, 1989
- English Electric Valve Company Limited
- Graeme L. Clark
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thyratrons
- Patent number 4,890,034
- Issue date Dec 26, 1989
- English Electric Valve Company Limited
- Hugh Menown
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas discharge devices wherein electrons are injected into a high fi...
- Patent number 4,879,490
- Issue date Nov 7, 1989
- English Electric Valve Company Limited
- Clifford R. Weatherup
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron beam apparatus
- Patent number 4,858,237
- Issue date Aug 15, 1989
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for forming an electron beam sheet
- Patent number 4,839,554
- Issue date Jun 13, 1989
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for operating an image sensor having an integration period u...
- Patent number 4,835,616
- Issue date May 30, 1989
- English Electric Valve Company Limited
- Christopher J. Morcom
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ignitron with arc-centering magnetic field
- Patent number 4,833,363
- Issue date May 23, 1989
- English Electric Valve Company Limited
- Barry Jennis
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetron with tuning member moveable by passing current through it
- Patent number 4,831,341
- Issue date May 16, 1989
- English Electric Valve Company Limited
- Michael B. C. Brady
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser apparatus having cathode bore directing electron beam onto anode
- Patent number 4,825,446
- Issue date Apr 25, 1989
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hydrogen sulphide sensor
- Patent number 4,822,465
- Issue date Apr 18, 1989
- English Electric Valve Company Limited
- Eric Jones
- G01 - MEASURING TESTING
Information Patent Grant
Amplifying arrangements
- Patent number 4,820,996
- Issue date Apr 11, 1989
- English Electric Valve Company Limited
- Roy Heppinstall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Directly heated cathodes
- Patent number 4,810,925
- Issue date Mar 7, 1989
- English Electric Valve Company Limited
- David B. Fox
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge tube apparatus
- Patent number 4,805,180
- Issue date Feb 14, 1989
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge tubes
- Patent number 4,794,614
- Issue date Dec 27, 1988
- English Electric Valve Company Limited
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Iris or shutter arrangements
- Patent number 4,774,537
- Issue date Sep 27, 1988
- English Electric Valve Company Limited
- Michael H. Moody
- G02 - OPTICS
Information Patent Grant
Laser apparatus
- Patent number 4,761,792
- Issue date Aug 2, 1988
- English Electric Valve Company
- Arthur Maitland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thyratron having thermionic cathode material between anode and cont...
- Patent number 4,761,794
- Issue date Aug 2, 1988
- English Electric Valve Company Limited
- Hugh Menown
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas discharge devices utilizing electron injection for gas ionization
- Patent number 4,758,766
- Issue date Jul 19, 1988
- English Electric Valve Company Limited
- Clifford R. Weatherup
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Travelling wave tubes
- Patent number 4,748,377
- Issue date May 31, 1988
- English Electric Valve Company Limited
- Robin C. M. King
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coupled cavity travelling wave tubes
- Patent number 4,746,833
- Issue date May 24, 1988
- English Electric Valve Company Limited
- Robin C. M. King
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Amplifying arrangements including a klystron having a power transfe...
- Patent number 4,733,192
- Issue date Mar 22, 1988
- British Broadcasting Corporation
- Roy Heppinstall
- H03 - BASIC ELECTRONIC CIRCUITRY

English Electric Valve Company Limited

Organization

Patents Grantslast 30 patents

RF radiation absorbing material disposed between the cathode and an...

Laser arrangement including effeciency improving gas reservoirs in...

Magnetron anode and method of manufacturing anode

Laser apparatus having a discharge triggering device inside a laser...

Spark gap devices

Image intensifiers and method of producing same

Laser apparatus

Imaging apparatus with flexible interface for controlling different...

Discharge tubes

Laser apparatus

Thyratrons

Gas discharge devices wherein electrons are injected into a high fi...

Electron beam apparatus

Apparatus for forming an electron beam sheet

Method for operating an image sensor having an integration period u...

Ignitron with arc-centering magnetic field

Magnetron with tuning member moveable by passing current through it

Laser apparatus having cathode bore directing electron beam onto anode

Hydrogen sulphide sensor

Amplifying arrangements

Directly heated cathodes

Discharge tube apparatus

Discharge tubes

Iris or shutter arrangements

Laser apparatus

Thyratron having thermionic cathode material between anode and cont...

Gas discharge devices utilizing electron injection for gas ionization

Travelling wave tubes

Coupled cavity travelling wave tubes

Amplifying arrangements including a klystron having a power transfe...

Patents Applicationslast 30 patents

Trademarklast 30 trademarks