Firm / Organisation

Wolf, Greenfield & Sacks PC

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Managing Partner: Timothy J Oyer
Number of partners: 48
Number of lawyers: 104
Foreign languages: Arabic, Cantonese, French, German, Gujarati, Hebrew, Hindi, Italian, Japanese, Mandarin, Russian, Spanish, Urdu, Vietnamese

Firm Overview:
Wolf Greenfield is the largest Boston-based law firm focused solely on intellectual property (IP) law, with clients ranging from startups to Fortune 500 companies to major research institutions. In 2018, the firm filed 7,021 patents and more than 1,100 trademarks in the US and over 130 countries. The firm’s practitioners are highly skilled technologists and insightful attorneys who provide the full spectrum of IP services to clients. More than 90% of Wolf Greenfield’s practitioners have science or engineering degrees and more than two-thirds hold advanced degrees (MS, PhD or MD). For 90 years, clients have turned to Wolf Greenfield for all of their IP needs, including patents, post-grant proceedings, litigation, trademarks, licensing and other IP agreements, copyrights, opinions, trade secrets, IP audits and due diligence, competitive analysis, and alternative dispute resolution.

Main Areas of Practice:  

-Trademarks & Copyrights
-IP Litigation & Alternative Dispute Resolution
-Trade Secrets
-Opinions & Product Clearance
-IP Audits & Due Diligence
-Post-Grant Proceedings
-Licensing & IP Agreements
-International IP Strategies


44 attorneys, patent agents, and technology specialists; 34 with PhDs or MDs; largest group in New England
Main Areas of Expertise:
Biochemistry, biomechanics, biophysics, cell biology, genetics, imaging, medical disciplines, microbiology, molecular biology, molecular biophysics, neuroscience/ neurobiology, nutraceuticals, physiology, plant biology, sequencing technologies, stem cell biology
Key Clients:
Biogen Idec, Boehringer Ingelheim, Boston Children’s Hospital, Brigham and Women’s Hospital, Dicerna Pharmaceuticals, Ginkgo Bioworks, Moderna, Selecta Biosciences, Shire Pharmaceuticals, and Sunovion Pharmaceuticals
Contact: Helen Lockhart
Tel: 617 646 8259
Email: [email protected]

Chemical & Materials Technologies:
20 attorneys, patent agents, and technology specialists; 16 with PhDs
Main Areas of Expertise:
Biochemistry, chemical engineering, chemistry, cleantech, energy storage, materials, medical devices and technologies, nanotechnology
Key Clients:
DEKA Research & Development, E Ink, Formlabs, Harvard University, Hollingsworth & Vose, MIT, Oxford Nanopore, Sion Power, and Voxel8
Contact: Robert H. Walat
Tel: 617 646 8291
[email protected]

Electrical & Computer Technologies:
35 attorneys, patent agents, and technology specialists; 24 with advanced technical degrees Main Areas of Expertise: Acoustics, communications, defense, e-commerce, electromechanical, electronics/computers, image processing, information content, nanotechnology, networking technologies, robotics, optics, semiconductors, software, storage technology
Key Clients:
Analog Devices, Dover Microsystems, EMC, Intermedia Labs, MediaTek, Nuance Communications, and Sony
Contact: Randy J. Pritzker
Tel: 617 646 8247
Email: [email protected]

39 attorneys; many with technical backgrounds
The firm represents both plaintiffs and defendants in patent and trademark infringement; post-grant proceedings; trade secret, nondisclosure, and non-competition disputes; ITC cases; domain name disputes; copyright disputes; breach of contract claims; IP licensing and other transactional disputes; antitrust and unfair competition claims; ANDA litigation; joint ownership issues; university/corporate collaborations; and ADR.
Key Clients:
BTG, E Ink, EMC, Formlabs, The Kantar Group, Keurig Green Mountain, Segway, Smith & Nephew, Sony, and University of Minnesota
Contact: Gregory F. Corbett
Tel: 617 646 8249
Email: [email protected]

Mechanical Technologies:
24 attorneys, patent agents, and technology specialists; many with advanced technical degrees The firm represents a wide range of industries.
Key Clients:
Burton Snowboards, ClearMotion, Coravin, Euro-Pro, Husky Injection Molding, Keurig Green Mountain, SharkNinja, Shire, and Vestas Wind Systems
Contact: Neil P Ferraro
Tel: 617 646 8267
Email: [email protected]

26 attorneys, patent agents, and technology specialists; 19 with PhDs or MDs
Main Areas of Expertise:
biopharmaceuticals, chemistry, drug discovery, generic drug issues, Hatch-Waxman issues, lifecycle management, Orange Book listings and strategies, patent term extensions, pharmacogenomics, toxicology
Key Clients:
Boston Pharmaceuticals, Harvard University, Memorial Sloan-Kettering, MIT, Vertex, and Whitehead Institute for Biomedical Research
Contact: C Hunter Baker
Tel: 617 646 8381
Email: [email protected]

Post-Grant Proceedings:
37 members from range of technical disciplines and industry backgrounds
The firm represents both patent owners and petitioners in complex Patent Office proceedings, including inter partes reviews and other post-grant proceedings, reexaminations and interferences, and high-stakes patent litigation. The PTAB has been a very favorable forum for those challenging patents, as it institutes trials on about 63% of all challenges. Wolf Greenfield’s petitioner clients have fared far better—of the 55 petitions filed by our petitioner clients since 2016, 85% were instituted. Conversely, the PTAB has ruled on 24 petitions for Wolf Greenfield patent owner clients since 2016 and it has denied institution on 58% of those petitions, compared to a historic institution denial rate of 36%.
Key Clients:
Davol, E Ink, EMC, Google, Nuance Communications, RPX Corporation, Smith & Nephew, Sony, University of Florida, and Waymo
Contact: Richard F Giunta
Tel: 617 646 8322
Email: [email protected]

Trademark & Copyright:
11 members; filed more than 1,100 trademarks in 2018
Recognized for excellence by World Trademark Review, US News & World Report, and Best Lawyers. The firm represents a wide range of industries.
Key Clients:
Amphenol, Butterfly Network, Foundation Medicine, Ginkgo Bioworks, The Jackson Laboratory, Lantheus Medical Imaging, Tootsie Roll Industries, and Yale University
Contact: Douglas R Wolf
Tel: 617 646 8260
Email: [email protected]