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For the Inventor, By the Inventor

London, United Kingdom

Johnson Matthey Fuel Cells Limited


USPTO Granted Patents = 38

% Expired Patents = 13.2


Forward Citations = 56

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54 inventors (with patents filed for the assignee):

goldMedal Jonathan David Brereton Sharman (10 out of 14 patents)

silverMedal Rachel Louise O'Malley (9 out of 10 patents)

bronzeMedal Robert Jeffrey Coleman (7 out of 7 patents)

4.  Thomas Robertson Ralph (6 out of 18 patents)

5.  David Thompsett (5 out of 33 patents)

6.  Angus John Dickinson (5 out of 7 patents)

7.  Enrico Petrucco (5 out of 5 patents)

8.  David Edward Barnwell (5 out of 6 patents)

9.  Sarah Caroline Ball (5 out of 9 patents)

10.  Edward Anthony Wright (4 out of 5 patents)

11.  Alejandro Martinez Bonastre (3 out of 7 patents)

12.  Geoffrey Hugh Spikes (3 out of 3 patents)

13.  Lee Alan Sweetland (3 out of 3 patents)

14.  Jorge Manuel Caramelo Soares (3 out of 3 patents)

15.  Ian Roy Harkness (3 out of 4 patents)


Core Competencies:
Catalyst
Membrane Electrode Assembly
Ion-Conducting Membrane
Catalyst Layer
Reinforced Membrane-Seal Assembly
Electrocatalyst Ink
Ternary Platinum Alloy Catalyst
Thin Film Catalytic Material
Carbon Monoxide-Tolerant Anode
Polymer Dispersion
Fuel Cell Assembly
Carbon Supported Catalyst

38 patents:

1. 11404701 - Catalyst (2022-08-02),
2. 11398639 - System and method for the manufacture of membrane electrode assemblies (2022-07-26),
3. 11239485 - Process (2022-02-01),
4. 11158867 - Catalyst layer (2021-10-26),
5. 11139482 - Catalyst (2021-10-05),
6. 10964967 - Process for the recovery of ionomer (2021-03-30),
7. 10938038 - Use of an anode catalyst layer (2021-03-02),
8. 10833334 - Catalyst (2020-11-10),
9. 10811716 - Ion-conducting membrane (2020-10-20),
10. 10777833 - Membrane (2020-09-15),
11. 10615423 - Catalyst (2020-04-07),
12. 10530002 - Ion-conducting membrane (2020-01-07),
13. 10424800 - Process for making a reinforced membrane-seal assembly and membrane-seal assembly for fuel cell (2019-09-24),
14. 10333157 - Membrane-seal assembly (2019-06-25),
15. 10297836 - Catalyst layer (2019-05-21),
Company Overview
Johnson Matthey Fuel Cells Limited is a prominent player in the development and manufacturing of advanced fuel cell technologies. Based in London, the company specializes in creating solutions that enhance energy efficiency and reduce emissions, contributing to a sustainable future. Their expertise spans various sectors, including transportation and stationary power generation, where they focus on innovative applications of hydrogen and fuel cell systems. Johnson Matthey is committed to driving the transition to cleaner energy through its cutting-edge research and development initiatives.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Johnson Matthey Fuel Cells Limited USPTO Patent Assignee Logo
38 Patents

#104 in London

#472 in United Kingdom

#17,860 in the World

London, GB
London, United Kingdom

Johnson Matthey Fuel Cells Limited

Forward Citations = 56

54 inventors:

goldMedal Jonathan David Brereton Sharman (10 out of 14 patents)

silverMedal Rachel Louise O'Malley (9 out of 10 patents)

bronzeMedal Robert Jeffrey Coleman (7 out of 7 patents)

4.  Thomas Robertson Ralph (6 out of 18 patents)

5.  David Thompsett (5 out of 33 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Johnson Matthey Fuel Cells Limited. Retrieved from https://idiyas.com/company/johnson-matthey-fuel-cells

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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