Assignee
UPONOR AB
FI6 patents
Top patents by PatentIndex Score
US4873048AOct 10, 1989
Method for the formation of a hole in a plastic pipe
UPONOR AB31 citations92
US4929409AMay 29, 1990
Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube
UPONOR AB48 citations88
US4710337ADec 1, 1987
Method and apparatus for continuously extruding single-wall pipe of plastics or other mouldable material
UPONOR AB59 citations85
US4790975ADec 13, 1988
Method and device for extrusion of a double wall plastics pipe
UPONOR AB20 citations79
US4933134AJun 12, 1990
Method and device for extrusion of a double wall plastics pipe
UPONOR AB7 citations71
US4807910AFeb 28, 1989
Sleeve joint and method of producing such a sleeve joint
UPONOR AB8 citations65