Long-time home security firm ADT is suing rival upstart Ring alleging the newcomer is violating its trademarks by using signage that is very similar to the blue octagon logo that ADT has used for ...

ADT is suing Amazon's Ring, with the home security company arguing that Ring's "blue octagon" is a blatant copy of the signage ADT has long used. Ring began using the blue octagon design earlier this ...

BOCA RATON, Fla.—Residential security giant ADT says it is actively going after security companies, big and small, who make “the mistake” of using signage that looks like ADT's trademarked octagonal, ...