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St. Helens, United Kingdom

Pilkington Brothers P.l.c.

USPTO Granted Patents = 102

Trademarks = 1

Forward Citations = 1,476

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111 inventors (with patents filed for the assignee):

Raymond Peter Cross (5 out of 6 patents)

Joseph E Lewis (5 out of 6 patents)

George A Dickinson (4 out of 4 patents)

4. David R Cockram (4 out of 4 patents)

5. Donald C Wright (4 out of 4 patents)

6. Brian Marsh (4 out of 4 patents)

7. Peter Ward (4 out of 4 patents)

8. Gordon T Simpkin (4 out of 4 patents)

9. Christopher W Hall (3 out of 8 patents)

10. Peter Chesworth (3 out of 3 patents)

11. William Jackson Rhodes (3 out of 3 patents)

12. William Christie Hynd (3 out of 3 patents)

13. David Gordon Loukes (3 out of 3 patents)

14. William Ramsey Maltman (3 out of 4 patents)

15. Bernard James Kirkbride (3 out of 3 patents)

Core Competencies:

Coated Glass

Photochromic Articles

Thermal Toughening

Infrared Reflecting Coatings

Glass Melting Tanks

Opaque Cladding Panel

Laminated Glass Units

Heat Strengthened Glass

Glass Fibres

Window Panel

Glass Assembly

Cationic Surface Coating

102 patents: Sort by Forward Citations

1. 4894290 - Coated glass (1990-01-16),

2. 4872756 - Dual path interferometer with varying difference in path length (1989-10-10),

3. 4851471 - Process for manufacturing photochromic articles (1989-07-25),

4. 4825154 - Current probe (1989-04-25),

5. 4819405 - Opaque cladding panel (1989-04-11),

6. 4817347 - Window Panel (1989-04-04),

7. 4812359 - Impact-resistant laminate (1989-03-14),

8. 4786619 - Television face plates resistant to browning (1988-11-22),

9. 4764198 - Glass melting tanks and refractory material therefor (1988-08-16),

10. 4759788 - Heat strengthened glass (1988-07-26),

11. 4755204 - Manufacture of curved glass sheets (1988-07-05),

12. 4749397 - Method of coating glass (1988-06-07),

13. 4725452 - Production of infrared reflecting coatings on glass (1988-02-16),

14. 4680206 - Sealed double glazing unit (1987-07-14),

15. 4673325 - Gripper apparatus for stacking a batch of sheets (1987-06-16),

Company Overview

Pilkington Brothers P.l.c., headquartered in St. Helens, GB, is a leader in glass coating technology, specializing in the development and manufacturing of advanced glass products. The company focuses on a range of core technologies, including coated glass, photochromic articles, and thermal toughening processes. Pilkington also innovates in infrared reflecting coatings and produces various glass solutions such as laminated glass units and opaque cladding panels, catering to diverse architectural and industrial applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

102 Patents

#2 in St. Helens

#179 in United Kingdom

#7,654 in the World

St. Helens, United Kingdom

Pilkington Brothers P.l.c.

Forward Citations = 1,476

111 inventors:

Raymond Peter Cross (5 out of 6 patents)

Joseph E Lewis (5 out of 6 patents)

George A Dickinson (4 out of 4 patents)

4. David R Cockram (4 out of 4 patents)

5. Donald C Wright (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Pilkington Brothers P.l.c.. Retrieved from https://idiyas.com/company/pilkington-brothers

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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