Recognized for advising major corporations, start-ups, and research institutions, Wolf Greenfield & Sacks excels in patent prosecution, with particular expertise in the life sciences sector. Practice head Robert Walat has extensive experience in patent prosecution, diligence, opinion work, and foreign oppositions, with technical expertise spanning materials, mechanical, and chemical technologies. Hunter Baker is knowledgeable in life sciences, combining deep patent law experience to deliver IP strategies to research institutions, universities, biotechnology companies, pharmaceutical firms, and investment advisors. Daniel Young is adept in managing patent portfolios for biologics and small molecules. Elisabeth Hunt is skilled in post-grant proceedings and has represented both challengers and patentees. Philip Hamzik concentrates on pharmaceutical matters, while Zhiyun (Jean) Ge advises innovators in the life sciences sector. Andrew Varrenti prosecutes domestic and international patents across electro-mechanical, and software technologies, including AI, blockchain, cloud computing, and aerospace. Richard Giunta, Patrick Waller, Oona Johnstone and Heather DiPietrantonio are also recommended. All lawyers are based in Boston.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'We have consistently been impressed by the quality of their advice, responsiveness, and commercial awareness. The team demonstrates deep expertise in U.S. design patent law and practice. Their guidance is clear and pragmatic.'
- 'They are proactive in identifying risks and opportunities, including enforcement considerations and portfolio optimization, and they communicate these points in a way that is accessible even to non U.S. practitioners. We consider them a trusted partner and would not hesitate to recommend them to clients seeking strong U.S. design patent protection.'
- 'The firm is also a pleasure to work with on a personal level. The attorneys and paralegals are friendly, approachable, efficient, and highly collaborative.'
- 'Large team combining impressive technical and legal knowledge with approachability.'
- 'Their technical understanding of new material innovations is impressive and incredibly valuable as it shortens the "translation" time from lab notebooks to patent language and stronger claims.'
- 'They are exceptionally bright, excited about innovative ideas, and highly organized.'
- 'We always can trust them, they deliver on times agreed upon, and they do not hold back with their opinion. However, always in a way that also other opinions could be shared and they were equally valued.'
- 'The team has extraordinary expertise in the gene editing space and we heavily use Wolf Greenfield for our most important cases. They are highly responsive, willing to provide practical advice, and take the time to get to know my employer as a client.'
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Patrick Waller
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Oona Johnstone
Heather DiPietrantonio
Practice head
Robert Walat
Other key lawyers
Hunter Baker; Daniel Young; Elisabeth Hunt; Philip Hamzik; Zhiyun (Jean) Andrew Varrenti; Richard Giunta, Patrick Waller: Oona Johnstone; Heather DiPietrantonio