Per Olof Oberg

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Nordmaling, SE

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement at self expanding booms
- Patent number 5,860,252
- Issue date Jan 19, 1999
- Expandi Systems AB
- Per Olof Oberg
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Arrangement for a boom
- Patent number 5,711,634
- Issue date Jan 27, 1998
- Expandi Systems AB
- Per Olof Oberg
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Arrangement for a boom
- Patent number 5,511,906
- Issue date Apr 30, 1996
- Expandi Systems AB
- Per O. Oberg
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method of producing contaminant restraining booms and the like
- Patent number 4,741,089
- Issue date May 3, 1988
- Per O. Oberg
- E04 - BUILDING
Information Patent Grant
Apparatus for reeling floating booms, particularly such as are self...
- Patent number 4,480,800
- Issue date Nov 6, 1984
- Sanera Projecting Aktiebolag
- Per O. Oberg
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Apparatus for recovering oil or the like floating on a liquid surfa...
- Patent number 4,356,086
- Issue date Oct 26, 1982
- Sanera Projecting Aktiebolag
- Per O. Oberg
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING