Armstrong wins patent case

After a two-week trial in U.S. District Court, a Milwaukee jury has found in favor of Armstrong World Industries in a patent infringement case filed by rival flooring manufacturer Pergo. At issue is an interlocking technology for laminate flooring made for Armstrong by Alloc, a Norway company with offices in Racine, Wis.

Pergo was seeking $85 million in lost profits as well as future royalties. The lawsuit was originally filed in 2002. An attorney for the Swedish company, which has a U.S. division headquartered in Raleigh, N.C., told the Milwaukee Business Journal that Pergo would file a motion to set aside the jury verdict.

Based in Lancaster, Pa., Armstrong has sold an estimated $500 million of Alloc-made laminate flooring over a five-year period.