Wellworthy Limited

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USPTO Granted Patents = 7

Forward Citations = 141

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7 inventors (with patents filed for the assignee):

David Francis Fletcher-Jones (2 out of 2 patents)

Gerald Longfoot (2 out of 2 patents)

David C Speaight (2 out of 3 patents)

4. Andrew Timothy Cole (1 out of 3 patents)

5. Robert Munro (1 out of 6 patents)

6. Simon Thomas Gazzard (1 out of 1 patent)

7. Harold Taylor Hill (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 5913960 - Pistons (1999-06-22),

2. 4997024 - Method of making a piston (1991-03-05),

3. 4989559 - Pistons for internal combustion engines (1991-02-05),

4. 4228727 - Pistons (1980-10-21),

5. 4114519 - Pistons (1978-09-19),

6. 4111438 - Sealing ring assemblies for pistons (1978-09-05),

7. 3947607 - Method for reinforcing pistons (1976-03-30),

Company Overview

Wellworthy Limited is a leading manufacturer of piston rings and cylinder liners, serving the automotive and industrial markets globally. With over 100 years of experience in the industry, the company is known for its high-quality products and commitment to innovation. Wellworthy Limited is dedicated to delivering reliability and performance to its customers through advanced technology and superior craftsmanship.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#2 in Lymington

#2,345 in United Kingdom

Lymington, United Kingdom