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White Plains, NY, United States of America

Plessey Incorporated

Calculating rank

USPTO Granted Patents = 27

Forward Citations = 604

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22 inventors (with patents filed for the assignee):

Anthony V Fraioli (6 out of 7 patents)

Harry J Ledgerwood (5 out of 6 patents)

Eugene E Shube (4 out of 8 patents)

4. Valentin G Barba (3 out of 12 patents)

5. John A DeRosa (3 out of 3 patents)

6. Lawrence E Frazee (3 out of 3 patents)

7. John M Frusco (2 out of 2 patents)

8. Leland H Hemming (1 out of 11 patents)

9. Peter Douglas (1 out of 1 patent)

10. Thomas Ian Stewart (1 out of 1 patent)

11. John Francis Konyak (1 out of 1 patent)

12. Edrol Ford Troxtel (1 out of 1 patent)

13. Andrew Hugh Maguire (1 out of 1 patent)

14. George Mundy Schuman, Jr (1 out of 1 patent)

15. Elwin Arthur Guthrie (1 out of 1 patent)

Core Competencies:

Electromechanical Actuator

Humidity Sensor

Integrated Circuit Package

Lead Frame

Stock Feeder

Thick Film Circuits

Oxidation Resistant Powders

Position Indicating Systems

Pipe Joint Coupling

Ceramic Assembly

High Speed Feeding

Stamping Tools

27 patents: Sort by Forward Citations

1. 4891994 - Linear electromechanical actuator (1990-01-09),

2. 4858491 - Fail-free actuator assembly (1989-08-22),

3. 4823063 - Authority limiter (1989-04-18),

4. 4683407 - Authority limiter (1987-07-28),

5. 4580710 - Stock feeder with hydraulic shock absorber (1986-04-08),

6. 4563908 - High speed, dual operated electromechanical actuator (1986-01-14),

7. 4538839 - Pipe joint coupling (1985-09-03),

8. 4513899 - Stock feeder with adjustable width feed path (1985-04-30),

9. 4493447 - High speed article feeding apparatus (1985-01-15),

10. 4334152 - Position indicating systems (1982-06-08),

11. 4311730 - Thick film circuits (1982-01-19),

12. 4289922 - Integrated circuit package and lead frame (1981-09-15),

13. 4218683 - Range focus lens (1980-08-19),

14. 4205548 - Stamping tools (1980-06-03),

15. 4155574 - Simplified pipe coupling (1979-05-22),

Company Overview

Plessey Incorporated, based in White Plains, NY, specializes in advanced semiconductor technologies, focusing on innovative solutions for various applications. The company is recognized for its expertise in developing high-performance electronic components, particularly in the fields of optoelectronics and sensor technologies. Plessey's research initiatives emphasize enhancing device efficiency and functionality, contributing to sectors such as telecommunications, automotive, and consumer electronics, thereby positioning itself as a key player in the semiconductor industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

27 Patents

#19 in White Plains, NY

#743 in New York

#12,432 in US

#24,046 in the World

White Plains, NY, United States of America

Plessey Incorporated

Forward Citations = 604

22 inventors:

Anthony V Fraioli (6 out of 7 patents)

Harry J Ledgerwood (5 out of 6 patents)

Eugene E Shube (4 out of 8 patents)

4. Valentin G Barba (3 out of 12 patents)

5. John A DeRosa (3 out of 3 patents)

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

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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