Polsinelli P.C. appointed Mark T. Deming as vice chair of the firm’s Hatch-Waxman practice group.He is an intellectual property attorney who advises large and small companies across the country, practicing trademark, patent and trade dress areas within the intellectual property field.• Phillip W. Nelson joined Holland & Knight LLP as a senior counsel.Nelson has experience in all aspects of Chapter 11 reorganizations and debtor-in-possession representations, including the plan of reorganization development …