Katten Muchin Rosenman LLP promoted Jason M. Vismantas and Jeffrey A. Wakolbinger to partner.Vismantas is a member of the real estate practice. Wakolbinger is a member of the intellectual property practice.• Michelman & Robinson LLP added Bryan J. Johnson as a partner.His legal practice ranges from complex commercial, real estate, construction and employment disputes to contract negotiations and other business transactional matters.• Cozen O’Connor partner Gary L. Gassman was elected American Bar …