13 Patterson Belknap Attorneys Receive Recognition in Chambers USA 2019

April 25, 2019

Patterson Belknap Webb & Tyler LLP is pleased to announce that five of our practice areas and thirteen of our partners and counsel received recognition in the newly released Chambers USA - America’s Leading Lawyers for Business 2019.

Chambers rankings are based on extensive research and interviews with peers and clients around the country. The qualities assessed include technical legal ability, professional conduct, client service, commercial awareness/astuteness, diligence, commitment, and other qualities most valued by the client.

The following firm practices were recognized:

  • Advertising: Litigation – National
  • Intellectual Property: Patent – New York
  • Intellectual Property: Trademark, Copyright & Trade Secrets – New York
  • Litigation: Securities: Institutional Plaintiffs – New York
  • Real Estate: Mainly Dirt – New York

In addition, the following partners and counsel were recognized:

  • William F. Cavanaugh, Jr. in Intellectual Property: Patent – New York
  • Gregory L. Diskant in Intellectual Property: Patent – New York
  • Joshua A. Goldberg in Litigation: White-Collar Crime & Government Investigations – New York
  • Erik Haas in Litigation: Securities Institutional Plaintiffs – New York
  • Andrew L. Herz in Real Estate – New York
  • Robert P. LoBue in Intellectual Property: Trademark, Copyright & Trade Secrets – New York
  • Lewis V. Popovski in Intellectual Property: Patent – New York
  • Geoffrey Potter in Intellectual Property: Trademark, Copyright & Trade Secrets – New York
  • Daniel S. Ruzumna in Litigation: White-Collar Crime & Government Investigations – New York
  • Robert M. Safron in Real Estate – New York
  • Peter Tomlinson in Litigation: Securities Institutional Plaintiffs – New York
  • John D. Winter in Product Liability & Mass Torts – National
  • Steven A. Zalesin in Advertising: Litigation – National

Comments regarding the Firm from the Chambers 2019 guide include:


"Remains a go-to firm for high-stakes advertising litigation. Particularly noted for representing leading brands in false advertising disputes, with a strong capability in handling cases that go to trial. Also possesses a nationwide practice in the defense of consumer class actions. Particularly active on behalf of clients in the food and drink industry.

Sources Say: 'They work well together and deliver win after win. Their strengths are their knowledge of the law and our company. They are excellent, persuasive writers, good orators and very responsive.'

One client describes it as 'a true go-to firm when it comes to advertising and product claims.'

KEY INDIVIDUALS: Head of department Steven Zalesin has extensive experience in a range of contentious issues including Lanham Act lawsuits. He often represents well-known food and drink, pharmaceutical and consumer goods companies in high-stakes class actions."


"Draws acclaim for its strong offering across the patent, trademark and copyright spaces. Possesses strength and depth in a number of areas including pharmaceuticals and biosimilars, boasting an impressive client roster of market-leading clients.

Sources say: 'They are a very formidable litigation team - that is one of their fortes. Patterson just really knows how to litigate.'

Another interviewee reports: 'They are outstanding. These lawyers are energetic, forward-thinking, know when to be aggressive when needed and when to take a step back.'

'They quickly comprehend a case and summarize it in a way that makes it sounds great,' says one commentator, who adds: 'They have a great, almost immediate understanding of our concerns and find a way to frame it in a way that expresses it clearly for others.'

One client adds: 'The team is top-quality and provides excellent client service and legal work.'

KEY INDIVIDUALS: Gregory Diskant is a highly regarded practitioner with a wealth of experience handling complex patent disputes for market-leading pharmaceutical and medical device sector companies. Clients say: 'He's a top-notch trial lawyer. He is a very commercial litigator and we look to him for acute, sound counsel.'

William Cavanaugh enjoys a strong reputation for his experience across a broad range of patent litigation. He is particularly noted for his strength in advising on life science sector disputes. One client remarks: 'He is a go-to lawyer with terrific insights and encyclopedic knowledge of the issues,' further adding: 'He gives really pragmatic, practical advice.'

Robert LoBue 'is extremely knowledgeable, gives practical, actionable legal advice and is great to work with,' report clients. He is well-versed in an array of IP matters including trademark and copyright disputes. He is also noted for his knowledge across First Amendment issues.

Geoffrey Potter is recognized for his expertise in handling complex IP and anticounterfeiting matters, notably for clients in the life sciences and medical devices fields. A client refers to him as 'one of the most brilliant, innovative, creative attorneys I have had the pleasure of working with.'

Lewis Popovski possesses considerable experience across a broad range of complex patent disputes. He is noted for his expertise in advising clients in the tech space."


"Go-to RMBS litigation practice that remains a top choice for institutional plaintiffs. Regularly acts for monoline insurers in high-value actions brought against financial institutions, with a strong track record of securing multimillion-dollar settlements. Leverages notable expertise in corporate and real estate matters when advising on securities disputes, as well as wider experience in regulatory investigations and criminal defense.

Sources Say: 'They are creative in suggesting outside-the-box strategies to achieve our objectives, and are consummate tacticians and strategists, basing their advice on a clearheaded assessment of the client's position,' confirm interviewees.

Another source reports: 'They are a very strong player who have some significant clients in really significant matters that they've litigated and resolved successfully.'

'They're smart guys who are very knowledgeable in the institutional plaintiffs' space,' a further observer notes.

KEY INDIVIDUALS: Joshua Goldberg has 'excellent judgment and a very good demeanor,' say sources, adding that 'he is very logical and can see through tough issues.' He is a highly regarded litigator who acts on large-scale regulatory investigations as well as bringing to bear significant trial skills when handling criminal prosecutions.

Daniel Ruzumna is recognized for his extensive white-collar criminal defense practice, which sees him act on investigations and litigation across a range of complex mandates, including those brought under the False Claims Act. Sources describe him as 'very smart, extremely thorough, and passionate about the matters he works on.'

Erik Haas 'pushes his clients' agenda very effectively,' report peers, while clients commend his ability to 'anticipate issues with claims and come up with practice methods for challenging them.' He acts for both domestic and foreign entities on big-ticket RMBS claims as part of his wider litigation practice.

Peter Tomlinson centers his practice on complex financial litigation involving sophisticated structured products. According to interviewees, he is 'very well regarded in the RMBS space' as 'investors really trust his judgment - he's been very effective in achieving settlements.'"


According to one interviewee, "John Winter is a fine choice of counsel for medical device and pharmaceutical companies seeking national coordination expertise, due to his ability to 'vigorously defend his clients.' He is also noted for his skills in reaching cross-border settlements."


"Highly regarded leasing practice, regularly engaged by major tenants and landlords for complex transactions. Also proficient in the financing, acquisition and disposition of high-value real estate assets.

Sources Say: One client comments: 'Patterson Belknap is a great law firm with talented lawyers who provide first-class service.'

KEY INDIVIDUALS: Andrew Herz is a highly experienced real estate practitioner, skilled at handling a wide range of commercial transactions. He is particularly noted for his strength in disposition and leasing matters. Interviewees praise: 'He is a fierce advocate for his client.'

Robert Safron has experience acting for an array of clients on sophisticated real estate matters. Clients say: 'He is an extraordinarily capable and knowledgeable attorney.'"