The litigious rows between Qualcomm and Apple have already struck at the former’s Achilles’ heel – the risk of any fundamental change to its licensing model. Now Apple’s most sensitive spot, iPhone sales, has also been targeted, with a Chinese court issuing two injunctions against sales of several models of the handset, which it said violate two Qualcomm patents. The companies were, predictably, offering different takes on the seriousness of the ban. Apple said it applied only to models running the legacy operating system, iOS 11, and that all its current devices remain on sale in China. But the patents at issue relate to technologies to enable users to adjust and reformat the size and appearance of photographs, and to…