Inventor

AGREN LENNART

SE4 patents

⚠️ This page may combine multiple inventors who share the name “AGREN LENNART”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UPONOR INNOVATION AB

2 patents

US5469891ANov 28, 1995

Method for relining underground pipelines

UPONOR INNOVATION AB26 citations88

US6302983B1Oct 16, 2001

Method for lining underground pipelines

UPONOR INNOVATION AB12 citations65

UPONOR AB

1 patent

US4929409AMay 29, 1990

Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube

UPONOR AB48 citations88

UPONOR NV

1 patent

US5139730AAug 18, 1992

Method and apparatus for manufacturing ribbed pipe

UPONOR NV16 citations70