Solas OLED Limited has added a sixth case to its display panel campaign, hitting HP (6:19-cv-00631) over the provision of Spectre x360 Laptops. HP joins Alphabet (Google), Apple, Dell, LG Display and LG Electronics (LGE) (named in the same complaint), and Sony as defendants in the Western District of Texas, each of which has yet to file an answer (or otherwise respond to) the complaint filed against it; Samsung, a defendant in the Eastern District of Texas, has answered, pleading counterclaims for noninfringement and invalidity, as well as a counterclaim for unenforceability of one of the three patents asserted against it, based on alleged inequitable conduct before the USPTO.