Amazon Fires Back in Fight Over Warehouse Technology Patents

Amazon.com, Inc. sued Detroit-area augmented reality system maker LightGuide, Inc. in a Seattle federal court Tuesday, seeking a declaration that it didn’t infringe three patents.

The complaint comes in response to LightGuide’s lawsuit in the Eastern District of Texas that alleges the e-commerce titan infringed three of its patents for a light-guided assembly system—US Patent Nos. 7,515,981, 9,658,614, and 10,528,036—through Amazon’s Nike system, which uses magenta and white lights to direct warehouse workers where to pick up and place items.

LightGuide, which counts Ford Motor Co. and General Electric as customers, said in its November complaint Amazon ...