Firm Directory Leon R. Yankwich direct line: (617) 374-0930 e-mail: lryankwich@yankwich.com Thomas R. Berka direct line: (617) 374-0931 e-mail: trberka@yankwich.com David G. O'Brien direct line: (617) 374-0932 e-mail: dgobrien@yankwich.com Michael R. Wesolowski direct line: (617) 374-0933 e-mail: mrwesolowski@yankwich.com Melanie A. McFadden (Manager) direct line: (617) 374-3710 e-mail: mamcfadden@yankwich.com Nasim G. Memon (Patent Paralegal) direct line: (617) 374-3711 e-mail: ngmemon@yankwich.com