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For the Inventor, By the Inventor

GB

Gec-Marconi Limited


USPTO Granted Patents = 171


Forward Citations = 2,961

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190 inventors (with patents filed for the assignee):

goldMedal Stafford M Ellis (7 out of 36 patents)

silverMedal William James Stewart (6 out of 30 patents)

bronzeMedal Brian F Smith (6 out of 8 patents)

4.  Roger Martin Langdon (5 out of 20 patents)

5.  Robert Anthony Severwright (4 out of 5 patents)

6.  Michael L Henning (4 out of 6 patents)

7.  Terence P Young (4 out of 4 patents)

8.  Robert K McEwen (4 out of 5 patents)

9.  Roger William Whatmore (3 out of 16 patents)

10.  Richard Adams (3 out of 3 patents)

11.  Alan Mosley (3 out of 11 patents)

12.  Christopher B Staveley (3 out of 3 patents)

13.  Neil A Cade (3 out of 8 patents)

14.  Clement P Burrage (3 out of 3 patents)

15.  Simon H Spencer (3 out of 3 patents)


Core Competencies:
Continuous Wave Radar
Imaging System
Underwater Applications
Telecommunications
Acoustic Imaging
Electronic Switching
Laser Technology
Night Vision
Cryogenic Assembly
Aircraft Systems
Optical Devices
Display Technologies

171 patents:

1. 6633333 - Cameras (2003-10-14),
2. 6373175 - Electronic switching devices (2002-04-16),
3. 6249536 - Lasers (2001-06-19),
4. 6236144 - Acoustic imaging arrays (2001-05-22),
5. 6225043 - Separation and analysis (2001-05-01),
6. 6184757 - Cryogenic electronic assembly (2001-02-06),
7. 6154910 - Bridge stabilization (2000-12-05),
8. 6130636 - Continuous wave radar system (2000-10-10),
9. 6095078 - Submarine propulsion control system (2000-08-01),
10. 6058847 - Submersible mine neutralisation vehicle (2000-05-09),
11. 6055634 - Secure internal communication system (2000-04-25),
12. 6008779 - Night vision viewing systems (1999-12-28),
13. 6007908 - Coatings (1999-12-28),
14. 5999520 - Terrestrial flight telephone system (1999-12-07),
15. 5986810 - Imaging system (1999-11-16),
Company Overview
Gec-Marconi Limited is a prominent player in the radar technology sector, specializing in the development and manufacturing of advanced radar systems and imaging technologies. The company focuses on continuous wave radar and acoustic imaging, catering to various applications including telecommunications and underwater systems. With a strong emphasis on innovation, Gec-Marconi also explores laser technology and night vision solutions, contributing significantly to defense and commercial sectors in the UK and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

171 Patents

#3 in

#101 in United Kingdom

#4,844 in the World

GB
GB

Gec-Marconi Limited

Forward Citations = 2,961

190 inventors:

goldMedal Stafford M Ellis (7 out of 36 patents)

silverMedal William James Stewart (6 out of 30 patents)

bronzeMedal Brian F Smith (6 out of 8 patents)

4.  Roger Martin Langdon (5 out of 20 patents)

5.  Robert Anthony Severwright (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gec-Marconi Limited. Retrieved from https://idiyas.com/company/gec-marconi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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