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For the Inventor, By the Inventor

Chelmsford, United Kingdom

English Electric Valve Company Limited


USPTO Granted Patents = 125


Forward Citations = 542

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83 inventors (with patents filed for the assignee):

goldMedal Hugh Menown (17 out of 17 patents)

silverMedal Arthur Maitland (15 out of 20 patents)

bronzeMedal Ralph D Nixon (15 out of 15 patents)

4.  Michael B Brady (9 out of 11 patents)

5.  Alan H Pickering (8 out of 10 patents)

6.  Maurice Esterson (7 out of 7 patents)

7.  Clifford R Weatherup (6 out of 9 patents)

8.  Christopher V Neale (6 out of 6 patents)

9.  Peter Robert Davis (5 out of 5 patents)

10.  Timothy P Donaldson (5 out of 5 patents)

11.  Robin C King (5 out of 5 patents)

12.  Roy Heppinstall (4 out of 9 patents)

13.  Jonathan R Howorth (4 out of 8 patents)

14.  Eric Jones (4 out of 4 patents)

15.  Barry P Newton (4 out of 4 patents)


Core Competencies:
RF Radiation Absorbing Material
Laser Arrangement
Magnetron Anode
Spark Gap Devices
Gas Discharge Devices
Electron Beam Apparatus
Thyratrons
Discharge Tubes
Iris Arrangements
Travelling Wave Tubes
Image Sensors
Display Systems

125 patents:

1. 5691667 - RF radiation absorbing material disposed between the cathode and anode (1997-11-25),
2. 5450433 - Laser arrangement including effeciency improving gas reservoirs in (1995-09-12),
3. 5061878 - Magnetron anode and method of manufacturing anode (1991-10-29),
4. 4949354 - Laser apparatus having a discharge triggering device inside a laser tube (1990-08-14),
5. 4935666 - Spark gap devices (1990-06-19),
6. 4907243 - Laser apparatus (1990-03-06),
7. 4896215 - Imaging apparatus with flexible interface for controlling different (1990-01-23),
8. 4896073 - Discharge tubes (1990-01-23),
9. 4890295 - Laser apparatus (1989-12-26),
10. 4890034 - Thyratrons (1989-12-26),
11. 4879490 - Gas discharge devices wherein electrons are injected into a high field (1989-11-07),
12. 4858237 - Electron beam apparatus (1989-08-15),
13. 4839554 - Apparatus for forming an electron beam sheet (1989-06-13),
14. 4835616 - Method for operating an image sensor having an integration period (1989-05-30),
15. 4833363 - Ignitron with arc-centering magnetic field (1989-05-23),
English Electric Valve Company Limited is a leading manufacturer of industrial valves since 1950. We specialize in designing, engineering, and supplying high-quality valves for various applications. Our comprehensive range of valves includes gate valves, globe valves, check valves, ball valves, and butterfly valves. With a commitment to excellence and customer satisfaction, we provide reliable and durable valve solutions to industries such as oil and gas, petrochemical, power generation, and water treatment. Visit our website to explore our product range and learn more about our expertise in the valve industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

125 Patents

#1 in Chelmsford

#131 in United Kingdom

#6,218 in the World

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Chelmsford, United Kingdom

English Electric Valve Company Limited

Forward Citations = 542

83 inventors:

goldMedal Hugh Menown (17 out of 17 patents)

silverMedal Arthur Maitland (15 out of 20 patents)

bronzeMedal Ralph D Nixon (15 out of 15 patents)

4.  Michael B Brady (9 out of 11 patents)

5.  Alan H Pickering (8 out of 10 patents)

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