About 2 Trademarks found that are owned by Per Aarsleff As

The mark consists of the black word BLUELiGHT with a small blue arc and a bigger black arc placed above the word part of the mark.

Building materials (not of metal); rigid pipes (not of metal) for building purposes

Installation, maintenance, cleaning and repair of sewage systems; mounting tubular bags and liners by application on surfaces of passageways and internal surfaces of pipelines to line theses; sewage inspection in connection with the repair of sewage systems

Building materials (not of metal); rigid pipes (not of metal) for building purposes

Machines and mechanical equipment for mounting tubular bags or liners by application on surfaces of passageways and internal surfaces of pipelines to line these

Tubular bags or liners of curable plastic material for sealing surfaces of passageways and internal surfaces of pipelines; materials for sealing, packing and insulation purposes; pipe joints and tubing (not of metal)