Roelof H. Marissen

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Bergentheim, NL

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Patents Grantslast 30 patents

Information Patent Grant
Pipe part with socket provided with longitudinally extending channels
- Patent number 4,432,395
- Issue date Feb 21, 1984
- Wavin B.V.
- Joannes H. Beune
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Plastic pipe provided with a groove
- Patent number 4,428,591
- Issue date Jan 31, 1984
- Wavin B.V.
- Roelof H. Marissen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Pipe part with socket provided with longitudinally extending channels
- Patent number 4,344,461
- Issue date Aug 17, 1982
- Wavin B.V.
- Joannes H. Beune
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Plastic pipe provided with a groove
- Patent number 4,338,716
- Issue date Jul 13, 1982
- Wavin B.V.
- Roelof H. Marissen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL