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Ilford, United Kingdom

Plessey Overseas Limited

USPTO Granted Patents = 271

Forward Citations = 4,546

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265 inventors (with patents filed for the assignee):

Nicholas Paul Cowley (13 out of 120 patents)

John P Dakin (12 out of 15 patents)

William James Stewart (9 out of 30 patents)

4. Andrew Cannon Carter (8 out of 30 patents)

5. Rodney J Lawton (8 out of 12 patents)

6. Roger William Whatmore (7 out of 16 patents)

7. Jack Brettle (6 out of 9 patents)

8. Peter J Taylor (6 out of 8 patents)

9. Ian Bennion (5 out of 14 patents)

10. Clive Trundle (5 out of 11 patents)

11. Thomas Jackson (5 out of 5 patents)

12. Robert C Goodfellow (5 out of 14 patents)

13. Terence T Caven (5 out of 5 patents)

14. Peter G Laws (4 out of 11 patents)

15. Nigel P Dyer (4 out of 7 patents)

Core Competencies:

Optical Sensing Arrangements

Fibre Optic Sensor

Data Transmission System

Analog to Digital Converters

Semiconductor Diode Laser Array

High Frequency Master/Slave Flip-Flops

Thermal IR Detector

Optical Data Storage

Phase Detector

Vernier Structure

Noise Reduction System

Optical Wavelength Division Multiplexing

271 patents: Sort by Forward Citations

1. 8111584 - Optical sensing arrangements (2012-02-07),

2. 5212686 - Asynchronous time division switching arrangement and a method of (1993-05-18),

3. 5200650 - High frequency master/slave flip-flops (1993-04-06),

4. 5157341 - Phase detector (1992-10-20),

5. 5155455 - AM/FM modulator in which AM can be converted to FM by vector addition (1992-10-13),

6. 5095514 - Fibre optic sensor (1992-03-10),

7. 5095215 - Thermal IR detector electrode configuration (1992-03-10),

8. 5091918 - Equalizers (1992-02-25),

9. 5080931 - Doped polymer films for waveguides (1992-01-14),

10. 5061582 - Optical data storage (1991-10-29),

11. 5060027 - Light emitting diode array with aligned solder bumps (1991-10-22),

12. 5050194 - High speed asynchronous data interface (1991-09-17),

13. 5046047 - Circuit arrangement for verifying data stored in a random access memory (1991-09-03),

14. 5045348 - Thin film deposition process (1991-09-03),

15. 5042038 - Data path checking system (1991-08-20),

Company Overview

Plessey Overseas Limited, based in Ilford, GB, specializes in the development and manufacturing of advanced optical sensing technologies. The company focuses on a range of core technology topics, including optical sensing arrangements, fibre optic sensors, and data transmission systems. Plessey is also involved in the creation of analog to digital converters and semiconductor diode laser arrays, contributing to innovations in high-frequency electronics and thermal infrared detection. Their expertise supports various applications in optical data storage and sensing solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

271 Patents

#1 in Ilford

#54 in United Kingdom

#3,242 in the World

Ilford, United Kingdom

Plessey Overseas Limited

Forward Citations = 4,546

265 inventors:

Nicholas Paul Cowley (13 out of 120 patents)

John P Dakin (12 out of 15 patents)

William James Stewart (9 out of 30 patents)

4. Andrew Cannon Carter (8 out of 30 patents)

5. Rodney J Lawton (8 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Plessey Overseas Limited. Retrieved from https://idiyas.com/company/plessey-overseas

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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