At HG, excellence is not just a goal; it’s our standard. We are consistently recognized and rewarded by institutions and peers for exceptional work. From recognition for Firm-wide prowess to individual awards for IP veterans and identification of future leaders, each accolade is a testament to HG’s dedication to proficiency, thought leadership, and unparalleled counsel for our clients.
HG is pleased to announce that London-based Counsel Arthur Laycock and New York-based Associate Anthony Boiano are 2025 IP Stars Rising Stars. Managing IP’s IP Stars are one of the legal industry’s most respected benchmarks for patent expertise. The comprehensive research process involves extensive analysis of practitioner capabilities, client feedback, and market reputation, making recognition meaningful for both individual attorneys and their firms.
The accolades continue to accumulate for HG Partner Karen Mangasarian, who was named Patent Strategy Attorney of the Year – New York at the 2025 LMG Life Sciences Awards, capping off what has been an extraordinary year of industry recognition. The research team at LMG Life Sciences praised her consistency for “delivering excellent services across all stages of innovation.”
HG’s London Office Breaks New Ground with Financial Times Recognition
HG’s London office has achieved a significant milestone, being named to the Financial Times’ Europe’s Leading Patent Law Firms List for the first time. This recognition, comprised of firms most recommended in a survey of 10,000 peers and clients, illustrates HG’s growing influence in the international intellectual property landscape.
HG is pleased to announce that seven of our attorneys have been recognized in the 2025 edition of Best Law Firms and Best Lawyers.
Tier 1 National: Biotechnology and Life Science Practice and Litigation- Patent.
Tier 1 Regional New York City: Biotechnology and Life Science Practice, Litigation- Patent, Patent Law
Tier 3 Regional New York City: Litigation- Intellectual Property
Best Lawyers: Ones to Watch in America: Jason Ingerman, Daniel Organ, and Kevin Rieffel.
Best Lawyers: Joshua Masur (Recognized since 2017), James F Haley Jr (Recognized since 1991), James Leiz (Recognized since 2024), and Karen Mangasarian (Recognized since 2024)
These recognitions reflect the dedication, expertise, and exceptional client service that define our patent and litigation practices.
HG is pleased to announce that the Firm and three of its partners, James F. Haley, Jr., Karen Mangasarian, and Brian Gummow, have once again been honored by Managing IP in its prestigious IP Stars rankings. Managing IP’s IP Stars are one of the legal industry’s most respected benchmarks for patent expertise. The comprehensive research process involves extensive analysis of practitioner capabilities, client feedback, and market reputation, making recognition meaningful for both individual attorneys and their firms.
HG is pleased to announce its continued inclusion in the prestigious Chambers and Partners rankings for 2025. This marks the second consecutive appearance in the New York Intellectual Property: Patents category, reinforcing the firm’s position as a standout boutique practice in a field of big hitters.
HG Earns Accolades Across Its Global Offices From IAM Patent 1000
HG received extensive recognition in the 2025 IAM Patent 1000 across its transatlantic offices, with the firm earning a Recommendation for International work and its integrated approach that delivers “seamlessly integrated trans-Atlantic service.” The accolades span all three offices: San Jose partner Gregory Lundell earned his fifth Patent 1000 appearance; London’s office received a Bronze Award with three practitioners recognized including Peter Hale for his commercial acumen, debut honoree Andy Hilton for his trust-based client relationships, and Roger Nash for his budget-conscious, quality-focused approach informed by in-house experience; and New York’s office was Recommended for Patent Prosecution and life sciences work, with recognition for founding partner James F. Haley Jr.’s leadership, Karen Mangasarian’s strategic patent analysis, and Brian Gummow’s innovative problem-solving approach. These honors demonstrate HG’s position as a leading international patent practice with deep talent across jurisdictions.
Karen Mangasarian: Patent Prosecutor of the Year at the Inaugural LSPN Awards
HG Partner Karen Mangasarian has been named Patent Prosecutor of the Year at the inaugural Life Sciences Patent Network (LSPN) Awards USA, held on May 6, 2025, in Boston following the LSPN North America–Spring 2025 Conference. Hosted by Life Sciences Intellectual Property Review, the awards recognize practitioners driving innovation in life sciences intellectual property through peer nominations and independent expert judging. The judging panel praised Karen as “the rare life science patent prosecutor fluent in the language of biologics and small molecules,” highlighting her technical talent, legal skills, and ability to align patent and commercial strategies, making her essential for life science clients seeking patents for precision medicines and complex molecules. This recognition underscores Karen’s leadership in navigating complex technical landscapes and exemplifies HG’s standards of precision, expertise, and excellence in securing critical patents and advancing client success.
London’s Arthur Laycock Named a Rising Star by Managing IP
HG LLP is pleased to announce that Counsel Arthur Laycock has been honored by Managing IP as a 2024 IP Rising Star. Managing IP is a preeminent resource for those seeking to identify world-class, private practice patent expertise on a variety of markets and sub-specialties.
2024 New York Super Lawyers and Rising Stars
Each year, Thomson Reuters selects no more than five percent of the nominated lawyers for the New York Metro Super Lawyer and Rising Star lists. This year, four outstanding HG attorneys were recognized with this prestigious honor, standing out amongst their peers in the bustling legal landscape of New York, New York. James F. Haley, Jr. is listed for the 18th time, Karen Mangasarian is selected for the third time, and Jeffery Ingerman makes an impressive 11th appearance.
Partner Brian Gummow is one of 2024’s Rising Stars for the fourth time. Rising Stars is an exclusive list of top-rated attorneys in specific practice and recognizes unwavering professionalism and exceptional reputation within the field.
Three HG Partners Listed in WIPR Leaders Guide
Three HG Partners, James F. Haley, Jr., Karen Mangasarian, and Brian Gummow were listed in the prestigious WIPR Leaders 2024 Guide. WIPR Leaders is a “one-stop guide” for clients seeking top-tier IP practitioners across the world. WIPR Leaders are chosen by a research team after exhaustive nominations and vetting.
HG Recognized by Chambers for Excellence in Patents
HG has been honored with a ranking in the prestigious Chambers and Partners Guide, Intellectual Property: Patents, for 2024. This is no small feat as less than 2% of U.S. firms can boast a Chambers ranking and boutique firms like HG must compete against the full spectrum of firms, both big and small.
In the end, it is the depth of expertise in both industry and legal matters that earned HG a place on this coveted list. In their editorial, Chambers noted that HG’s “substantial expertise in patent prosecution and general patent strategy” and “ability to handle complex subject matter” as reasons for inclusion.
New York Office and 5 HG Partners Recognized by Managing IP
HG LLP is pleased to announce that 5 HG partners have been honored by Managing IP in their 2024 edition of IP Stars. Managing IP is a preeminent resource for those seeking to identify world-class, private practice patent expertise on a variety of markets and sub-specialties.
- IP Star New York: Co-Founding Partner James F. Haley, Jr., was recognized along Partner Karen Mangasarian
- IP Star National: Partner Brian Gummow
- Notable Practitioner London: Partners Peter Hale and Andy Hilton
In addition to the individual accolades, the New York office was one of only three firms Highly Recommended for patents.
Six HG Attorneys Named to IAM Patent 1000, London and US Offices Recognized for Excellence
A stunning 6 HG attorneys were named to the IAM Patent 1000, released June 5, 2024.
- New York: Co-Founding Partner James F. Haley, Jr., was recognized along Partners Karen Mangasarian and Brian Gummow for excellence in patent prosecution.
- San Jose: Gregory Lundell was, once again, recognized for transactions.
- London: Partner Peter Hale was recognized for excellence in both EPO and prosecution and Roger Nash was recognized for prosecution.
Additionally, HG’s London office maintained a Bronze Award for Patent Prosecution, the New York office is recommended for patent prosecution, and, as a Firm, HG was recommended overall for international work.
Co-Founding Partner, James F. Haley, Jr., Receives Lifetime Achievement at the Managing IP Awards, Americas
HG LLP Partners and Associates were among the 220 attendees at the 2024 Managing IP Awards Americas ceremony on April 25, 2024, in New York. Winners were honored and achievements applauded, but the highlight of the evening came with the announcement of the Lifetime Achievement Award recipient, HG Co-Founding Partner James F Haley Jr. This award recognizes his exceptional contributions to the field of intellectual property and also pays tribute to the values of integrity, expertise, and dedication that define his career. Mr. Haley graciously accepted the honor, attributing his success to inspiring clients, colleagues, and his family.
“Just ask Taylor Swift or Tom Brady, your team is so important. My clients and colleagues have shaped who I am as a lawyer. My wife and family have made me who I am. Because of them, it has been, and continues to be, an amazing ride that I never could have imagined.”
Mr. Haley’s words underscore the foundational importance of teamwork, mentorship, and collaboration at HG in addition to the profound impact of passion in shaping success. Please join all of us at HG in congratulating Mr. Haley on this well-deserved achievement.
2024 Managing IP Awards Shortlist Americas
HG is thrilled to receive two first-time nominations to the shortlist for the Managing IP Awards, Americas in 2024. The Firm was nominated for Boutique Firm of the Year Award and Partner Karen Mangasarian is nominated for Practitioner of the Year for Patent Prosecution. The Managing IP Awards are regarded as one of the most respected awards in the IP, the annual shortlist follows months of thorough research involving peer review, market evaluation, and client references.
2024 Thought Leaders USA
Co-founding partner James. F. Haley, Jr has been a Thought Leader for Patents and Recommended for Life Sciences Litigation in the 2024 edition of WWL: Thought Leaders USA, further cementing his status as an influential figure in the intellectual property legal community.
2023 IAM Recommendations and Patent 1000
After researching top firms and talent worldwide, IAM recognized HG’s London office with a Bronze Award for Patent Prosecution. In addition, the New York office was, once again, recommended for patent prosecution. As a Firm, HG was recommended overall for international work.
Several individual HG practitioners also made the Patent 1000: James F. Haley, Jr. (Prosecution), Peter Hale (EPO), Karen Mangasarian (Prosecution), Greg Lundell (Transactions),Brian Gummow (Prosecution), and Roger Nash (Prosecution).
2023 Best Lawyers
Three HG partners appeared on the 2023 Best Lawyers list. Appearing for the first time in Best Lawyers, Partners James Leiz and Karen Mangasarian were recognized for both patent litigation and patent law. This achievement shines a spotlight on their commitment to the highest standards of legal service and expertise. James F. Haley, Jr. was also recognized by Best Lawyers in the categories of biotechnology and life sciences, intellectual property litigation, and patent litigation.
2023 Best Law Firms
- National Rank Tier 2: Biotechnology and Life Sciences, Patent Litigation
- Metro Rank (NYC) Tier 2: Biotechnology and Life Sciences, Patent Litigation
- Metro Rank (NYC) Tier 3: Litigation- Intellectual Property