Patent Assignment
Reel/Frame 074818/0894
Change of Address
Recorded: 2026-01-14
Pages: 4
Assignor
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
Executed: 2025-02-05
Assignee
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
5TH FLOOR 2 GRESHAM STREET, LONDON, EC2V 7AD, UNITED KINGDOM
Covered Properties
(57)
Thin Film Catalytic Material for Use in Fuel
Process for the Manufacture of a Reinforced Membrane-Seal Assembly
Membrane-Seal Assembly
Membrane Electrode Assembly
Ion-Conducting Membrane
Process for Preparing a Catalytic Material
Carbon Monoxide-Tolerant Anode Catalyst Layer and Methods of Use Thereof in Proton Exchange Membrane Fuel Cells
Catalyst Layer
Platinum Group Metal Oxide Sols
Ternary Platinum Alloy Catalyst
Catalyst Layer Assembly
Membrane Structure
Catalyst Layer
Compound Having a Pyrochlore-Structure and Its Use as a Catalyst Carrier in Water Gas Shift Reaction
Platinum Alloy Catalyst
Membrane Electrode Assembly
Catalyst Layer
Catalyst
Catalyst
Composite Membrane
Catalyst
Membrane-Seal Assembly
Catalyst Layer Assembly
Process for the Recovery of Ionomer
Use of an Anode Catalyst Layer
Process for Making a Reinforced Membrane-Seal Assembly and Membrane-Seal Assembly for Fuel Cell
Catalyst
Catalyst-Coated Membrane Having a Laminate Structure
Process
Catalyst
Catalyst
Nanoparticles and Preparation Method
Catalyst for a Fuel Cell
Catalyst Layer
Catalysed Membrane
Membrane Electrode Assembly
Application:
17/634,836 →
Publication:
US 2022/0302486
Electrocatalyst Ink
Methods of Preparing Catalyst Materials
Catalyst Support
Process of Manufacturing a Membrane Electrode Assembly
Application:
17/998,302 →
Publication:
US 2023/0223566
Reinforced Electrolyte Membrane
Catalyst Preparation
Membrane-Seal Assembly
Application:
18/003,822 →
Publication:
US 2023/0282843
Catalysed, Ion-Conducting Membrane
Membrane and Process
Application:
18/340,338 →
Publication:
US 2023/0352713
Catalyst-Coated Membrane and Method of Manufacture
Application:
18/554,649 →
Publication:
US 2024/0372111
Electrocatalyst Ink
Oxygen Evolution Reaction Catalyst
Application:
18/566,403 →
Publication:
US 2025/0246642
Oxygen Evolution Reaction Catalyst
Application:
18/566,372 →
Publication:
US 2024/0266551
Method
Application:
18/702,013 →
Publication:
US 2024/0413365
Method of Manufacturing an Ion-Conducting Membrane
Application:
18/702,487 →
Publication:
US 2024/0429418
Catalyst Coated Membranes for Water Electrolysers
Application:
18/717,831 →
Publication:
US 2025/0059657
Catalyst Coated Membranes for Water Electrolysers
Application:
18/717,843 →
Publication:
US 2025/0051935
Catalyst
Application:
18/727,540 →
Publication:
US 2025/0075351
Membrane
Application:
18/864,330 →
Publication:
US 2025/0305160
Method and Apparatus for the Production of an Ion-Conducting Membrane
Application:
18/870,239 →
Publication:
US 2025/0367611
Process and Membrane
Application:
19/099,373 →
Publication:
US 2026/0031366
Related Assignments
(21)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 21, 2006
From: FISHER, JANET MARY; THOMPSETT, DAVID
To: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Reel/Frame 018725/0961 →
Assignment of Assignor's Interest
Jul 20, 2007
From: FISHER, JANET MARY; THOMPSETT, DAVID; WALTON, RICHARD IAN; WRIGHT, CHRISTOPHER STUART
To: JOHNSON MATTHEY PLC
Reel/Frame 019584/0267 →
Assignment of Assignor's Interest
Dec 4, 2007
From: HAYDEN, BRIAN ELLIOTT; LEE, CHRISTOPHER EDWARD; MORMICHE, CLAIRE; THOMPSETT, DAVID
To: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Reel/Frame 020195/0531 →
Assignment of Assignor's Interest
Dec 23, 2009
From: HARKNESS, IAN ROY; SHARMAN, JONATHAN DAVID BRERETON; WRIGHT, EDWARD ANTHONY
To: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Reel/Frame 023694/0270 →
Assignment of Assignor's Interest
Apr 8, 2010
From: BARNWELL, DAVID EDWARD; RALPH, THOMAS ROBERTSON; TREW, PETER ANTHONY
To: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Reel/Frame 024206/0503 →
Assignment of Assignor's Interest
Aug 23, 2012
From: SHARMAN, JONATHAN DAVID BRERETON
To: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Reel/Frame 028836/0880 →
Assignment of Assignor's Interest
Oct 9, 2012
From: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 029097/0631 →
Assignment of Assignor's Interest
May 14, 2013
From: BARNWELL, DAVID EDWARD; TREW, PETER ANTONY; RALPH, THOMAS ROBERTSON; COLEMAN, ROBERT JEFFREY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 030413/0290 →
Assignment of Assignor's Interest
Aug 1, 2013
From: THOMPSETT, DAVID; WRIGHT, EDWARD ANTHONY; FISHER, JANE MARY; PETRUCCO, ENRICO
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 030920/0107 →
Assignment of Assignor's Interest
May 22, 2014
From: BALL, SARAH; RALPH, THOMAS ROBERTSON; THEOBALD, BRIAN RONALD; THOMPSETT, DAVID
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 032949/0458 →
Assignment of Assignor's Interest
Apr 24, 2015
From: FROST, JONATHAN CHARLES; SHARMAN, JONATHAN DAVID BRERETON; PERMOGOROV, NADIA MICHELE
To: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Reel/Frame 035485/0994 →
Assignment of Assignor's Interest
Apr 27, 2015
From: HARKNESS, IAN ROY; WILLCOCKS, ALEXANDER MARTIN; WRIGHT, EDWARD ANTHONY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 035502/0094 →
Assignment of Assignor's Interest
Jul 22, 2015
From: SHARMAN, JONATHAN DAVID BRERETON; HARKNESS, IAN ROY; WRIGHT, EDWARD ANTHONY; WILLCOCKS, ALEXANDER MARTIN
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 036150/0101 →
Assignment of Assignor's Interest
Aug 12, 2015
From: O'MALLEY, RACHEL LOUISE; PETRUCCO, ENRICO
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 036311/0222 →
Assignment of Assignor's Interest
Jun 16, 2016
From: BURTON, SARAH LOUISE; DICKINSON, ANGUS JOHN; O'SULLIVAN, JULIE
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 038934/0226 →
Assignment of Assignor's Interest
Nov 30, 2016
From: BARNWELL, DAVID EDWARD; COLEMAN, ROBERT JEFFREY; DICKINSON, ANGUS JOHN; GRAY, PETER GEOFFREY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 040465/0611 →
Assignment of Assignor's Interest
Nov 30, 2016
From: BARNWELL, DAVID EDWARD; COLEMAN, ROBERT JEFFREY; DICKINSON, ANGUS JOHN; GRAY, PETER GEOFFREY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 040466/0641 →
Assignment of Assignor's Interest
Jun 8, 2017
From: O'MALLEY, RACHEL LOUISE
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 042645/0669 →
Assignment of Assignor's Interest
Jul 17, 2017
From: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 043024/0248 →
Assignment of Assignor's Interest
Dec 1, 2017
From: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
To: JOHNSON MATTHEY FUEL CELLS LIMITED
Reel/Frame 044275/0119 →
Change of Name
Jul 28, 2022
From: JOHNSON MATTHEY FUEL CELLS LIMITED
To: JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
Reel/Frame 060991/0106 →