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Donald J. L. ROY
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Enfield, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Fuel cell electrolyte reservoir
Patent number
11,139,487
Issue date
Oct 5, 2021
DOOSAN FUEL CELL AMERICA, INC.
Ke Gong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Fuel cell cooler plate
Patent number
11,050,069
Issue date
Jun 29, 2021
DOOSAN FUEL CELL AMERICA, INC.
Donald J. L. Roy
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Fuel cell spacer and electrolyte reservoir
Patent number
10,892,498
Issue date
Jan 12, 2021
DOOSAN FUEL CELL AMERICA, INC.
Donald J. L. Roy
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
FUEL CELL COOLER PLATE
Publication number
20210057766
Publication date
Feb 25, 2021
DOOSAN FUEL CELL AMERICA, INC.
Donald J. L. ROY
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
FUEL CELL ELECTROLYTE RESERVOIR
Publication number
20200161674
Publication date
May 21, 2020
DOOSAN FUEL CELL AMERICA, INC.
Ke GONG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FUEL CELL SPACER AND ELECTROLYTE RESERVOIR
Publication number
20200161668
Publication date
May 21, 2020
DOOSAN FUEL CELL AMERICA, INC.
Donald J. L. ROY
H01 - BASIC ELECTRIC ELEMENTS