LightGuide, Inc. has filed suit against Amazon (2:22-cv-00433) in the Eastern District of Texas, accusing Amazon of infringing three patents through the use of “light guided operational guide systems” used in pick and stow operations within its Fulfillment Centers. The patents are described as generally related to “operational guide systems and methods adapted to provide light guided visual indicators to an individual to guide and monitor operational actions dynamically, including but not limited to stowing and picking products for fulfilling orders at a fulfillment center”. LightGuide alleges willful infringement based on a set of purported past interactions between the parties.