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London, United Kingdom

Johnson Matthey Davy Technologies Limited

USPTO Granted Patents = 58

% Expired Patents = 5.2

CIPO Patents = 1

EPO Patents = 59

Trademarks = 8

Forward Citations = 41

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91 inventors (with patents filed for the assignee):

Julian Stuart Gray (10 out of 13 patents)

David John Watson (8 out of 9 patents)

Martin Smidt (6 out of 9 patents)

4. Michael William Marshall Tuck (6 out of 12 patents)

5. Graham Reed (6 out of 10 patents)

6. Paul Gordon (6 out of 6 patents)

7. Henry Arthur Claxton (6 out of 7 patents)

8. John Swinney (5 out of 5 patents)

9. Kar Chi Yiu (4 out of 4 patents)

10. Ian Campbell (4 out of 7 patents)

11. Robert Gallen (4 out of 4 patents)

12. Simon Robert Early (4 out of 10 patents)

13. Jay Simon Clarkson (4 out of 6 patents)

14. Benjamin Geoffrey Mallam (4 out of 4 patents)

15. Adrian Lord (3 out of 4 patents)

Core Competencies:

Catalyst Carriers

Steam Reforming

Methanol Synthesis

Hydroformylation

Fischer-Tropsch

Fluidisation

Regeneration

Aldehyde Production

Ethylene Glycol

Reaction Column

Carbonylation

Aromatic Carboxylic Acid

58 patents: Sort by Forward Citations

1. 12736414 - Relating to thermocouples for tubular reactors (2026-09-15),

2. 12697594 - Or relating to catalyst carriers for tubular reactors and associated methods (2026-08-04),

3. 12668488 - Steam reforming (2026-06-30),

4. 12637401 - Separation process for the production of C5 or C6 alkanediol (2026-05-26),

5. 12623211 - Method for making copper-containing catalysts (2026-05-12),

6. 12618011 - Process for synthesising hydrocarbons (2026-05-05),

7. 12612351 - Process for hydroformylation with removal of dissolved hydrogen (2026-04-28),

8. 12605685 - Compacting elements for reducing fluidisation in catalyst carrier for tubular reactors and associated methods (2026-04-21),

9. 12594541 - Getter activation and use (2026-04-07),

10. 12577181 - Method for shutting down a Fischer-Tropsch reactor (2026-03-17),

11. 12569843 - Systems and methods for wet air oxidation regeneration of catalysts with ion exchange (2026-03-10),

12. 12565465 - Process for formaldehyde manufacture (2026-03-03),

13. 12559368 - Steam reforming (2026-02-24),

14. 12528700 - Process for producing methanol and ammonia (2026-01-20),

15. 12522549 - Process for refining a crude ethylene glycol stream (2026-01-13),

Johnson Matthey Davy Technologies Limited, based in London, specializes in catalyst technologies that are essential for various chemical processes. The company focuses on developing advanced catalyst carriers and processes for steam reforming, methanol synthesis, hydroformylation, and Fischer-Tropsch synthesis. Their expertise extends to fluidisation and regeneration techniques, contributing significantly to aldehyde production and other industrial applications. With a commitment to innovation, Johnson Matthey Davy Technologies plays a vital role in enhancing efficiency and sustainability in the chemical industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Johnson Matthey Davy Technologies Limited

58 Patents

#71 in London

#304 in United Kingdom

#12,380 in the World

London, United Kingdom

Johnson Matthey Davy Technologies Limited

Forward Citations = 41

91 inventors:

Julian Stuart Gray (10 out of 13 patents)

David John Watson (8 out of 9 patents)

Martin Smidt (6 out of 9 patents)

4. Michael William Marshall Tuck (6 out of 12 patents)

5. Graham Reed (6 out of 10 patents)

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