Foley & Lardner filed a lawsuit Friday in Florida Middle District Court on behalf of road-paving equipment maker Blaw-Knox Corp. and its parent Gencor Industries. The complaint seeks declaratory judgment that Blaw-Knox is not obligated to sell its trademarked products and replacement parts to G.W. Van Keppel Co. under dealer agreements that were reached with a prior manufacturer. According to the suit, G.W. Van Keppel has threatened litigation based on a theory of successor liability. The case is 6:22-cv-00171, Blaw-Knox Corporation et al v. The G.W. Van Keppel Company.