Personnel Changes at IP Law Firms, Organization

The following changes in personnel and other news have been announced recently by prominent intellectual property law firms and other IP-related organizations:

Paul Hastings LLP has promoted New York-based IP attorney Evan D. Diamond to partner.

J. Rick Taché has left Greenberg Traurig LLP to join Buchalter, Orange County, California, as intellectual property shareholder and firm-wide co-chair of the firm’s patent litigation group. IP attorneys Erikson Squier and Roger Scott have also left Greenberg Traurig LLP to join Buchalter, Orange County, California, as senior counsel.

Arnold & Porter LLP has promoted Sean M. Callagy in San Francisco and Dina M. Hayes in Chicago to partners in its intellectual property practice group.

Dori A. Hanswirth and Theresa M. House have left Hogan Lovells US LLP, New York, to join Arnold & Porter LLP, New York, as partners in the firm’s intellectual property group.

• IP litigator Ashok Ramani has left Keker, Van Nest & Peters LLP, San Francisco, to join Davis Polk & Wardwell LLP, Menlo Park, California, as partner in its litigation department.

• IP litigator Robert M. Isackson has left Venable LLP, New York, for a partnership at Leason Ellis LLP, White Plains, New York.

Filko Prugo has left O’Melveny & Myers LLP, New York, to join Ropes & Gray LLP, New York, as partner and chair of the firm’s life sciences intellectual property litigation practice.

R. David Whitaker has left Buckley Sandler LLP, Chicago, to join DLA Piper, Chicago, as partner in the firm’s intellectual property and technology practice.

• Four media and entertainment attorneys have left DLA Piper, Los Angeles, to join IP law firm Russ August & Kabat, Los Angeles: Stanton “Larry” Stein, Bennett A. Bigman, and Ashley R. Yeargan join as partners. Diana A. Sanders joins as a senior associate.

• IP attorney Mark Lubbock has left Ashurst LLP, London, to join Brown Rudnick LLP, London, as a partner in the firm’s technology and intellectual property group.

Banner & Witcoff Ltd. has promoted nine IP attorneys to shareholders: Michael Cuviello, Craig Kronenthal, Jeffrey Chang, Gregory Israelsen, and Shambhavi Patel in Washington, D.C. Azuka Dike, Aaron Bowling, Maurine Knutsson, and Justin Philpott in Chicago.

Munir Abdallah Suboh has left Hadef & Partners, Dubai, to join BSA Ahmad Bin Hezeem & Associates LLP, Dubai, as partner and head of the firm’s intellectual property department.

To contact the reporter on this story: Malathi Nayak in Washington at

To contact the editor responsible for this story: Mike Wilczek at