On April 24, 2019, four networking patents originating with Ozmo, a company acquired by Atmel (itself bought by Microchip in 2016) in 2012, were assigned to Sonic Wave LLC, an entity under the management of one of the founders of Longhorn IP LLC. The last several months have seen the Texas monetization firm’s first litigation campaign, waged by affiliate Lone Star Silicon Innovations LLC, revived in the Northern District of California by the Federal Circuit (see here) and a second litigation campaign, begun by affiliate Katana Silicon Technologies LLC, hit Samsung in the Western District of Texas (see here). The assignment of patents to Sonic Wave, together with other recent Longhorn IP activity, suggests that more litigation may be planned.