By Baek Byung-yeul The escalating legal tussle between Samsung Electronics and Ericsson over patent infringements regarding network equipment technology is expected to be a long-running battle, as the Swedish telecom giant feels threatened by the Korean tech firm's fast-growing technological capability in the 5G market, according to a noted patent expert. "Ericsson and Samsung were embroiled in a patent licensing dispute from late 2012 to early 2014. The agreement they struck then has now expired. This reminds me of the situation between Apple and Nokia, which also seem to have a need to go to court every time their agreement is up for renewal," Florian Mueller, who's best known for running the software patent blog FOSS Patents, told The Korea Times during a recent email interview.