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Halvor Oien
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Porsgrunn, NO
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last 30 patents
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Patent Grant
Method and device for supporting catalyst gauzes in an ammonia oxid...
Patent number
7,563,419
Issue date
Jul 21, 2009
Yara International ASA
Halvor Øien
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
DUAL PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...
Publication number
20240367976
Publication date
Nov 7, 2024
YARA INTERNATIONAL ASA
Bent VIGELAND
C01 - INORGANIC CHEMISTRY
Information
Patent Application
DUAL PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...
Publication number
20240343577
Publication date
Oct 17, 2024
YARA INTERNATIONAL ASA
Bent VIGELAND
C01 - INORGANIC CHEMISTRY
Information
Patent Application
MONO PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...
Publication number
20240343576
Publication date
Oct 17, 2024
Bent VIGELAND
C01 - INORGANIC CHEMISTRY
Information
Patent Application
DUAL PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...
Publication number
20240336481
Publication date
Oct 10, 2024
YARA INTERNATIONAL ASA
Bent VIGELAND
C01 - INORGANIC CHEMISTRY
Information
Patent Application
MONO-PRESSURE PLANT FOR THE PRODUCTION OF NITRIC ACID AND METHOD FO...
Publication number
20230382734
Publication date
Nov 30, 2023
Bent VIGELAND
C01 - INORGANIC CHEMISTRY
Information
Patent Application
DUAL PRESSURE PLANT FOR THE PRODUCTION OF NITRIC ACID AND METHOD FO...
Publication number
20230264957
Publication date
Aug 24, 2023
YARA INTERNATIONAL ASA
Bent VIGELAND
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ABSORPTION COLUMN COMPRISING A FEED BOX HAVING A SERRATED WEIR AND...
Publication number
20230202845
Publication date
Jun 29, 2023
Yara International ASA
Halvor ØIEN
C01 - INORGANIC CHEMISTRY
Information
Patent Application
BLEACHING TOWER AND METHOD FOR NITRIC ACID PRODUCTION
Publication number
20220119258
Publication date
Apr 21, 2022
YARA INTERNATIONAL ASA
Halvor OIEN
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method and device for supporting catalyst gauzes in an ammonia oxid...
Publication number
20060110302
Publication date
May 25, 2006
Halvor Oien
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL