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Martijn Haddeman
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Heerde, NL
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Patents Grants
last 30 patents
Information
Patent Grant
Air diffuser device for ventilating rooms
Patent number
12,072,120
Issue date
Aug 27, 2024
Zehnder Group International AG
Martijn Haddeman
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Heat exchanger block and heat recovery ventilation unit comprising it
Patent number
10,852,028
Issue date
Dec 1, 2020
Zehnder Group International AG
Christian Hirsch
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
CENTRIFUGAL FAN ARRANGEMENT
Publication number
20230296109
Publication date
Sep 21, 2023
ZEHNDER GROUP INTERNATIONAL AG
Martijn HADDEMAN
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
HEAT RECOVERY UNIT
Publication number
20230272939
Publication date
Aug 31, 2023
ZEHNDER GROUP INTERNATIONAL AG
Eric ARENDS
F24 - HEATING RANGES VENTILATING
Information
Patent Application
AIR FILTER ASSEMBLY FOR HEAT RECOVERY VENTILATION UNIT
Publication number
20230258367
Publication date
Aug 17, 2023
ZEHNDER GROUP INTERNATIONAL AG
Martijn HADDEMAN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Air Diffuser Device For Ventilating Rooms
Publication number
20210302059
Publication date
Sep 30, 2021
ZEHNDER GROUP INTERNATIONAL AG
Martijn Haddeman
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Heat Exchanger Block and Heat Recovery Ventilation Unit Comprising it
Publication number
20180010820
Publication date
Jan 11, 2018
ZEHNDER GROUP INTERNATIONAL AG
Christian Hirsch
F28 - HEAT EXCHANGE IN GENERAL