Holwell Shuster & Goldberg has added John DiMatteo as a partner to lead the firm’s intellectual property practice. He was most recently co-chair of the intellectual property department at Willkie Farr & Gallagher.

Skadden, Arps, Slate, Meagher & Flom has promoted to partner Boris Bershteyn, litigation; C. Michael Chitwood, mergers and acquisitions; and Jon Hlafter, insurance mergers and acquisitions.