Per Almdahl

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Oslo, NO

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Patents Grantslast 30 patents

Information Patent Grant
Riser control device
- Patent number 7,389,817
- Issue date Jun 24, 2008
- Norsk Hydro ASA
- Per Almdahl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole gas/water separation and re-injection
- Patent number 6,691,781
- Issue date Feb 17, 2004
- Weir Pumps Limited
- Alexander Angus Grant
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method and device for the separation of a fluid in a well
- Patent number 6,277,286
- Issue date Aug 21, 2001
- Norsk Hydro ASA
- Terje Søntvedt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fixing means for a substantially cylindrical nuclear reactor pressu...
- Patent number 4,308,101
- Issue date Dec 29, 1981
- AB Asea-Atom
- Per Almdahl
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Riser control device
- Publication number 20050051339
- Publication date Mar 10, 2005
- Per Almdahl
- E21 - EARTH DRILLING MINING
Information Patent Application
Downhole gas/water separation and re-injection
- Publication number 20020059866
- Publication date May 23, 2002
- Alexander Angus Grant
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...