Paul Holso

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Viskafors, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for manufacturing ribbed pipe
- Patent number 5,139,730
- Issue date Aug 18, 1992
- Uponor N.V.
- Paul Holso
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and device for extrusion of a double wall plastics pipe
- Patent number 4,933,134
- Issue date Jun 12, 1990
- Oy Uponor AB
- Jyri Jarvenkyla
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and device for extrusion of a double wall plastics pipe
- Patent number 4,790,975
- Issue date Dec 13, 1988
- Oy Uponor AB
- Jyri Jarvenkyla
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL