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For the Inventor, By the Inventor

St. Helens, United Kingdom

Pilkington Plc


USPTO Granted Patents = 107

% Expired Patents = 12.1


Trademarks = 17

Forward Citations = 1,870

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119 inventors (with patents filed for the assignee):

goldMedal Karikath Sukumar Varma (8 out of 12 patents)

silverMedal Martin Rickwood (8 out of 8 patents)

bronzeMedal David William Holden (7 out of 11 patents)

4.  John Richard Holland (6 out of 10 patents)

5.  Stephen Roland Day (5 out of 15 patents)

6.  Kenneth Melvin Fyles (5 out of 8 patents)

7.  Ronald D Goodman (5 out of 21 patents)

8.  Kevin David Sanderson (5 out of 17 patents)

9.  Sean D Marsden (5 out of 5 patents)

10.  Peter James Whitfield (5 out of 5 patents)

11.  David Alan Strickler (4 out of 39 patents)

12.  Michel J Soubeyrand (4 out of 16 patents)

13.  Ashley Carl Torr (4 out of 11 patents)

14.  John D Hepworth (4 out of 4 patents)

15.  Leslie T Clarke (4 out of 4 patents)


Core Competencies:
Fire Resistant Glazing
Solar Control Coating
Laminated Glass
Tempered Glass
Coated Substrates
Electrochromic Devices
Glass Composition
Photochromic Compounds
Glazing Inspection
Sealed Glazing Units
Optical Quality
Glass Melting

107 patents:

1. 9789667 - Fire resistant glazing (2017-10-17),
2. 8632886 - Solar control glazing (2014-01-21),
3. 8613997 - Laminated glazing panel (2013-12-24),
4. 8028543 - Tempering bent glass sheets (2011-10-04),
5. 7995094 - Glazing inspection (2011-08-09),
6. 7947384 - Fire resistant glazings (2011-05-24),
7. 7692781 - Glazing inspection (2010-04-06),
8. 7528945 - Method to determine the optical quality of a glazing (2009-05-05),
9. 7334435 - Production of fire resistant laminates (2008-02-26),
10. 7282092 - Fire resistant glazings (2007-10-16),
11. 7213375 - Sealed glazing units (2007-05-08),
12. 7189285 - Fire resistant glazings (2007-03-13),
13. 7137276 - Process for coating glass (2006-11-21),
14. 6998362 - Glass compositions (2006-02-14),
15. 6955833 - Coating glass (2005-10-18),
PILKINGTON PLC is a leading global glass manufacturing company offering a wide range of high-quality glass solutions. They are known for their innovation and expertise in glass technology, catering to various industries including automotive, architectural, and specialty glass markets. With a strong commitment to sustainability and customer satisfaction, PILKINGTON PLC continues to deliver cutting-edge glass products for both commercial and residential applications.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

Pilkington Plc
107 Patents

#1 in St. Helens

#164 in United Kingdom

#7,325 in the World

St. Helens, GB
St. Helens, United Kingdom

Pilkington Plc

Forward Citations = 1,870

119 inventors:

goldMedal Karikath Sukumar Varma (8 out of 12 patents)

silverMedal Martin Rickwood (8 out of 8 patents)

bronzeMedal David William Holden (7 out of 11 patents)

4.  John Richard Holland (6 out of 10 patents)

5.  Stephen Roland Day (5 out of 15 patents)

Please report any incorrect information to [email protected]
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