First Light Disputes Validity of Trojan’s Patent for UV Water Treatment Replacement Lamps

In an Answer filed last week, First Light Technologies, Inc., says it’s not infringing on Trojan Technologies Group ULC’s patent because Trojan’s patent is invalid. As previously shared with UV Reporter subscribers, Trojan sued to make First Light stop selling replacement lamps for Trojan-brand UV water treatment systems. Trojan says First Light’s replacement lamps infringe on…