WSGR logoWSGR logo
WSGR logo
  • Experience
  • People
  • Insights
  • About Us
  • Careers

  • Practice Areas
  • Industries

  • Corporate
  • Intellectual Property
  • Litigation
  • Patents and Innovations
  • Regulatory
  • Technology Transactions

  • Capital Markets
  • Corporate Governance
  • Corporate Life Sciences
  • Derivatives
  • Emerging Companies and Venture Capital
  • Employee Benefits and Compensation
  • Energy and Climate Solutions
  • Executive Advisory Program
  • Finance and Structured Finance
  • Fund Formation
  • Greater China
  • Mergers & Acquisitions
  • Private Equity
  • Public Company Representation
  • Real Estate
  • Restructuring
  • Shareholder Engagement and Activism
  • Tax
  • U.S. Expansion
  • Wealthtech

  • Special Purpose Acquisition Companies (SPACs)

  • Environmental, Social, and Governance

  • AI and Data Center Infrastructure
  • Energy Regulation and Competition
  • Project Development and M&A
  • Project Finance and Tax Credit Transactions
  • Sustainability and Decarbonization
  • Transportation Electrification

  • U.S. Expansion Library and Resources

  • Post-Grant Review
  • Trademark and Advertising

  • Antitrust Litigation
  • Arbitration
  • Board and Internal Investigations
  • Class Action Litigation
  • Commercial Litigation
  • Consumer Litigation
  • Corporate Governance Litigation
  • Employment Litigation
  • Executive Branch Updates
  • Government Investigations
  • Internet Strategy and Litigation
  • Patent Litigation
  • Securities Litigation
  • State Attorneys General
  • Supreme Court and Appellate Practice
  • Trade Secret Litigation
  • Trademark and Copyright Litigation
  • Trial
  • White Collar Crime

  • Advertising, Promotions, and Marketing
  • Antitrust and Competition
  • Committee on Foreign Investment in the U.S. (CFIUS)
  • Communications
  • Data, Privacy, and Cybersecurity
  • Export Control and Sanctions
  • FCPA and Anti-Corruption
  • FDA Regulatory, Healthcare, and Consumer Products
  • Federal Trade Commission
  • Fintech and Financial Services
  • Government Contracts
  • National Security and Trade
  • Payments
  • State Attorneys General
  • Strategic Risk and Crisis Management
  • Tariffs, Customs, and Import Compliance

  • Antitrust and Intellectual Property
  • Antitrust Civil Enforcement
  • Antitrust Compliance and Business Strategy
  • Antitrust Criminal Enforcement
  • Antitrust Litigation
  • Antitrust Merger Clearance
  • European Competition Law
  • Third-Party Merger and Non-Merger Antitrust Representation

  • Anti-Money Laundering
  • Foreign Ownership, Control, or Influence (FOCI)
  • Team Telecom

  • AI in Healthcare
  • Animal Health
  • Artificial Intelligence and Machine Learning
  • Aviation
  • Biotech
  • Blockchain and Cryptocurrency
  • Clean Energy
  • Climate and Clean Technologies
  • Communications and Networking
  • Consumer Products and Services
  • Data Storage and Cloud
  • Defense Tech
  • Diagnostics, Life Science Tools, and Deep Tech
  • Digital Health
  • Digital Media and Entertainment
  • Electronic Gaming
  • Fintech and Financial Services
  • FoodTech and AgTech
  • Global Generics
  • Internet
  • Life Sciences
  • Medical Devices
  • Mobile Devices
  • Mobility
  • NewSpace
  • Quantum Computing
  • Semiconductors
  • Software

  • Offices
  • Country Desks
  • Events
  • Community
  • Our Diversity
  • Sustainability
  • Our Values
  • Board of Directors
  • Management Team

  • Austin
  • Boston
  • Boulder
  • Brussels
  • Century City
  • Hong Kong
  • London
  • Los Angeles
  • New York
  • Palo Alto
  • Salt Lake City
  • San Diego
  • San Francisco
  • Seattle
  • Shanghai
  • Washington, D.C.
  • Wilmington, DE

  • Law Students
  • Judicial Clerks
  • Experienced Attorneys
  • Patent Agents
  • Business Professionals
  • Alternative Legal Careers
  • Contact Recruiting
James G. Clessuras
Partner
Technology Transactions
Washington, D.C.
jclessuras@wsgr.com

D202-973-8830

Download vCard
Open PDF
  • Veteran Technology Transactions Lawyer

    Jamie is a veteran technology transactions lawyer with over 20 years’ experience representing clients in a range of complex commercial transactions.

  • A Focus on Innovator Clients

    His clients are pioneers in numerous technical areas, including artificial intelligence (AI), cloud computing, automotive, regenerative medicine, and drug delivery technologies.

  • Government Contracting Expertise

    Jamie also helps clients sell to federal customers and collaborate with government research institutions on technology development. 

Jamie Clessuras is a member and the previous, long-serving chair of the firm’s technology transactions department. With over 20 years of experience, clients turn to Jamie to structure, negotiate, and close complex commercial arrangements where innovative products, or strategic intellectual property rights, are at the forefront. Jamie has negotiated hundreds of deals to further the development, to launch or to extend the reach of pioneering technologies and products, including in areas of artificial intelligence (AI), cloud computing, automotive technology, regenerative medicine, and drug delivery technologies. A Silicon Valley transplant resident in the firm’s Washington, D.C., office, Jamie also understands how the federal government contracts with industry, and helps clients sell to federal customers and collaborate with government-owned research institutions on technology development. 

Experience

Jamie Clessuras is a member and the previous, long-serving chair of the firm’s technology transactions department. With over 20 years of experience, clients turn to Jamie to structure, negotiate, and close complex commercial arrangements where innovative products, or strategic intellectual property rights, are at the forefront. Jamie has negotiated hundreds of deals to further the development, to launch or to extend the reach of pioneering technologies and products, including in areas of artificial intelligence (AI), cloud computing, automotive technology, regenerative medicine, and drug delivery technologies. A Silicon Valley transplant resident in the firm’s Washington, D.C., office, Jamie also understands how the federal government contracts with industry, and helps clients sell to federal customers and collaborate with government-owned research institutions on technology development. 

Education
  • J.D., Northwestern Pritzker School of Law, 1997
  • B.S., Mechanical Engineering, Northwestern University, 1992
Honors
  • Recognized in the 2026 edition of Chambers USA for Technology & Outsourcing in D.C.
Admissions
  • Bar of the District of Columbia
  • State Bar of California
  • U.S. Patent and Trademark Office
Credentials
Education
  • J.D., Northwestern Pritzker School of Law, 1997
  • B.S., Mechanical Engineering, Northwestern University, 1992
Honors
  • Recognized in the 2026 edition of Chambers USA for Technology & Outsourcing in D.C.
Admissions
  • Bar of the District of Columbia
  • State Bar of California
  • U.S. Patent and Trademark Office

Select Transactions

AI and Machine Learning

  • Represented C3.ai in commercial agreements with enterprise customers for deployment of C3’s suite of AI applications
  • Represented Nuance Communications in numerous strategic commercial agreements, including with major smartphone OEMs for Nuance’s conversational AI software and solutions, and with IBM for advanced speech recognition solutions

Cloud Computing

  • Advised Salesforce in connection with strategic partnership with Amazon Web Services (AWS) for Salesforce’s use of AWS as its preferred public cloud infrastructure provider
  • Represented CloudSimple, Inc. in strategic alliance with Microsoft for the integration of CloudSimple’s managed service with Microsoft’s Azure, allowing users to run VMware natively on Azure
  • Advised Weaveworks in connection with strategic partnership with AWS for Kubernetes cloud management
  • Represented numerous private companies in agreements to move infrastructure to public-cloud providers, including AWS, Microsoft Azure and Google Cloud

Semiconductors/Hardware

  • Represented private developer of machine-learning application specific integrated circuit (ASIC) in supply agreement with public-cloud provider

Automotive/Autonomous Vehicles

  • Represented FREYR AS in license and services agreement for the implementation and use of 24M Technologies’ SemiSolid lithium-ion battery platform technology in FREYR’s planned facilities in Mo i Rana, Norway
  • Represented developer of autonomous vehicle technology in license and services agreement with LiDAR technology developer.

Fintech

  • Represented numerous technology providers in sales of software, SaaS and data products to financial institution customers

IoT and Connected Devices

  • Represented Plume Design, Inc. in strategic collaboration with Comcast for the development and integration of in-home adaptive WiFi products and services
  • Represented Netgear, Inc. in numerous commercial agreements involving the development and commercialization of Netgear’s home-networking products and services

Communications Technology

  • Advised Dolby Laboratories in collaboration agreement with Blue Jeans Network integrating Dolby’s in-person surround sound technology into Blue Jeans’ video meetings platform

Digital Healthcare

  • Represented Vynca in collaboration with Cerner Corporation for the integration of Vynca’s advance-care planning solutions with Cerner’s Millenium® EHR
  • Represented Nuance Communications in numerous commercial agreements with healthcare organizations for Nuance’s speech-recognition, transcription, clinical-documentation and diagnostic software and solutions

Strategic Life Sciences Collaborations and Licenses

  • Represented a public biotechnology company in collaborations with various third parties for the development and commercialization of innovative drug-device combination products using the third parties’ platform devices to deliver formulations of client’s drug products
  • Represented ATP, a leading life sciences venture capital firm, in matters relating to the formation and financing of Aulos out of Biolojic Design, including Aulos’ collaboration and license agreement with Biolojic Design for the development of highly differentiated interleukin-2 (IL-2)-binding monoclonal antibodies as therapeutics against solid tumors
  • Represented United Therapeutics Corporation in $1.2 billion global license agreement with Arena Pharmaceuticals for Arena's Phase 3 investigational drug candidate, ralinepag, a next-generation, oral, selective, and potent prostacyclin receptor agonist in development for the treatment of pulmonary arterial hypertension (PAH)
  • Represented United Therapeutics Corporation in worldwide exclusive licensing and collaboration agreement with Mannkind Corporation for the development and commercialization of a dry powder formulation of treprostinil for the treatment of PAH
  • Represented United Therapeutics Corporation in its exclusive license agreement with Samumed for North American rights to Samumed’s SM04646, a Wnt pathway inhibitor developed for the treatment of idiopathic pulmonary fibrosis (IPF)

Collaborations with Government-Owned Research Institutions

  • Represented Type One Energy Group on terms of its award from the U.S. Department of Energy to advance Type One’s stellarator-based nuclear fusion energy-generation system 
  • Represented numerous clients in cooperative research and development agreements (CRADAs) with government-owned research institutions, including the National Cancer Institute (NCI) of the National Institutes of Health (NIH) (to develop, evaluate, or conduct studies with respect to therapeutic and diagnostic products),

Complex Technology Carve -Out Transactions

  • Represented Dolby Laboratories, Inc. in connection with its acquisition of GE Licensing in a $429 million all-cash transaction involving over 5,000 patents, including key patents in video compression technology
  • Represented Seagate in sale of intellectual property and equipment assets to a subsidiary of Broadcom
  • Represented the management team of Careem Technologies in connection with spin out and $400 million sale of majority stake in Careem’s “Super App” business to Emirates Telecommunications Group Company
  • Represented Galvanize Therapeutics, Inc. in sale and license of assets, including a broad portfolio of intellectual property assets, to CardioFocus, Inc.
  • Represented NucleusHealth as seller’s counsel in sale of cloud-native imaging and workflow technology platform, Nucleus.io, to Change Healthcare
  • Represented LinkedIn as seller’s counsel in sale of Slideshare presentation-sharing service to Scribd
  • Represented Technicolor as buyer’s counsel in $600 million acquisition of assets associated with Cisco’s connected devices business, including the purchase of patents and the negotiation of complex cross licenses
  • Represented Netgear as buyer’s counsel in $138 million acquisition of assets associated with Sierra Wireless’s Aircard business, including the purchase of patents and the negotiation of complex cross licenses

Patent Portfolio Acquisitions and Sales

  • Represented InterDigital as seller’s counsel in the sale of approximately 1,700 patents and patent applications to Intel Corporation for $375 million
  • Represented Nuance Communications in numerous patent transactions, including the acquisition of 1,027 patents from AT&T, and in the acquisition of speech-related patents from IBM
  • Advised Daqri, LLC on sale of patent portfolio and related assets
  • Represented private-company developer of computer hardware components as seller’s counsel in divestiture of patent portfolio
Matters

Select Transactions

AI and Machine Learning

  • Represented C3.ai in commercial agreements with enterprise customers for deployment of C3’s suite of AI applications
  • Represented Nuance Communications in numerous strategic commercial agreements, including with major smartphone OEMs for Nuance’s conversational AI software and solutions, and with IBM for advanced speech recognition solutions

Cloud Computing

  • Advised Salesforce in connection with strategic partnership with Amazon Web Services (AWS) for Salesforce’s use of AWS as its preferred public cloud infrastructure provider
  • Represented CloudSimple, Inc. in strategic alliance with Microsoft for the integration of CloudSimple’s managed service with Microsoft’s Azure, allowing users to run VMware natively on Azure
  • Advised Weaveworks in connection with strategic partnership with AWS for Kubernetes cloud management
  • Represented numerous private companies in agreements to move infrastructure to public-cloud providers, including AWS, Microsoft Azure and Google Cloud

Semiconductors/Hardware

  • Represented private developer of machine-learning application specific integrated circuit (ASIC) in supply agreement with public-cloud provider

Automotive/Autonomous Vehicles

  • Represented FREYR AS in license and services agreement for the implementation and use of 24M Technologies’ SemiSolid lithium-ion battery platform technology in FREYR’s planned facilities in Mo i Rana, Norway
  • Represented developer of autonomous vehicle technology in license and services agreement with LiDAR technology developer.

Fintech

  • Represented numerous technology providers in sales of software, SaaS and data products to financial institution customers

IoT and Connected Devices

  • Represented Plume Design, Inc. in strategic collaboration with Comcast for the development and integration of in-home adaptive WiFi products and services
  • Represented Netgear, Inc. in numerous commercial agreements involving the development and commercialization of Netgear’s home-networking products and services

Communications Technology

  • Advised Dolby Laboratories in collaboration agreement with Blue Jeans Network integrating Dolby’s in-person surround sound technology into Blue Jeans’ video meetings platform

Digital Healthcare

  • Represented Vynca in collaboration with Cerner Corporation for the integration of Vynca’s advance-care planning solutions with Cerner’s Millenium® EHR
  • Represented Nuance Communications in numerous commercial agreements with healthcare organizations for Nuance’s speech-recognition, transcription, clinical-documentation and diagnostic software and solutions

Strategic Life Sciences Collaborations and Licenses

  • Represented a public biotechnology company in collaborations with various third parties for the development and commercialization of innovative drug-device combination products using the third parties’ platform devices to deliver formulations of client’s drug products
  • Represented ATP, a leading life sciences venture capital firm, in matters relating to the formation and financing of Aulos out of Biolojic Design, including Aulos’ collaboration and license agreement with Biolojic Design for the development of highly differentiated interleukin-2 (IL-2)-binding monoclonal antibodies as therapeutics against solid tumors
  • Represented United Therapeutics Corporation in $1.2 billion global license agreement with Arena Pharmaceuticals for Arena's Phase 3 investigational drug candidate, ralinepag, a next-generation, oral, selective, and potent prostacyclin receptor agonist in development for the treatment of pulmonary arterial hypertension (PAH)
  • Represented United Therapeutics Corporation in worldwide exclusive licensing and collaboration agreement with Mannkind Corporation for the development and commercialization of a dry powder formulation of treprostinil for the treatment of PAH
  • Represented United Therapeutics Corporation in its exclusive license agreement with Samumed for North American rights to Samumed’s SM04646, a Wnt pathway inhibitor developed for the treatment of idiopathic pulmonary fibrosis (IPF)

Collaborations with Government-Owned Research Institutions

  • Represented Type One Energy Group on terms of its award from the U.S. Department of Energy to advance Type One’s stellarator-based nuclear fusion energy-generation system 
  • Represented numerous clients in cooperative research and development agreements (CRADAs) with government-owned research institutions, including the National Cancer Institute (NCI) of the National Institutes of Health (NIH) (to develop, evaluate, or conduct studies with respect to therapeutic and diagnostic products),

Complex Technology Carve -Out Transactions

  • Represented Dolby Laboratories, Inc. in connection with its acquisition of GE Licensing in a $429 million all-cash transaction involving over 5,000 patents, including key patents in video compression technology
  • Represented Seagate in sale of intellectual property and equipment assets to a subsidiary of Broadcom
  • Represented the management team of Careem Technologies in connection with spin out and $400 million sale of majority stake in Careem’s “Super App” business to Emirates Telecommunications Group Company
  • Represented Galvanize Therapeutics, Inc. in sale and license of assets, including a broad portfolio of intellectual property assets, to CardioFocus, Inc.
  • Represented NucleusHealth as seller’s counsel in sale of cloud-native imaging and workflow technology platform, Nucleus.io, to Change Healthcare
  • Represented LinkedIn as seller’s counsel in sale of Slideshare presentation-sharing service to Scribd
  • Represented Technicolor as buyer’s counsel in $600 million acquisition of assets associated with Cisco’s connected devices business, including the purchase of patents and the negotiation of complex cross licenses
  • Represented Netgear as buyer’s counsel in $138 million acquisition of assets associated with Sierra Wireless’s Aircard business, including the purchase of patents and the negotiation of complex cross licenses

Patent Portfolio Acquisitions and Sales

  • Represented InterDigital as seller’s counsel in the sale of approximately 1,700 patents and patent applications to Intel Corporation for $375 million
  • Represented Nuance Communications in numerous patent transactions, including the acquisition of 1,027 patents from AT&T, and in the acquisition of speech-related patents from IBM
  • Advised Daqri, LLC on sale of patent portfolio and related assets
  • Represented private-company developer of computer hardware components as seller’s counsel in divestiture of patent portfolio

Select Publications

  • Co-author, “DoD Small Business Innovation Research (SBIR) Contractors' Data Rights Protections Extended to 20 Years, Government Rights Limited Thereafter,” Wilson Sonsini Alert, June 16, 2020

  • Co-author, "Delaware Chancery Court in Meso Scale v. Roche: Reverse Triangular Merger Does Not Trigger Consent Requirements in Assignment Provisions," Wilson Sonsini Goodrich & Rosati Alert, March 1, 2013
  • Co-author, "Understanding Technology Licensing Opportunities at DOE Labs," Wilson Sonsini Goodrich & Rosati Clean Tech Resource Center, April 7, 2010
  • Co-author, "Understanding Government Award Options," Wilson Sonsini Goodrich & Rosati Clean Tech Resource Center, October 28, 2009


Select Speaking Engagements

  • Guest Lecturer, Technology Transactions, Cornell Law School’s Technology and Entrepreneurship LLM Program at CornellTech, 2016-2021

  • “Licensing & Insolvency, an International Perspective,” Co-Presented with Taylor Wessing, July 8, 2020

  • Panelist, "Legal Practicum on Technology: Software Patent Debate," Cornell University Graduate School (Tech Campus), New York, New York, February 2013
  • "Legal Issues in Cloud Computing," Kloud Camp Mexico, Mexico City, Mexico, Fall 2011-2012
  • "What Is Cloud Computing?," AIPLA Mid-Winter Institute, Orlando, Florida, January 2011
  • "Improvement Provisions in License Agreements," ACI - Technology Licensing Agreements Conference, Washington, D.C., March 2010
Insights

Select Publications

  • Co-author, “DoD Small Business Innovation Research (SBIR) Contractors' Data Rights Protections Extended to 20 Years, Government Rights Limited Thereafter,” Wilson Sonsini Alert, June 16, 2020

  • Co-author, "Delaware Chancery Court in Meso Scale v. Roche: Reverse Triangular Merger Does Not Trigger Consent Requirements in Assignment Provisions," Wilson Sonsini Goodrich & Rosati Alert, March 1, 2013
  • Co-author, "Understanding Technology Licensing Opportunities at DOE Labs," Wilson Sonsini Goodrich & Rosati Clean Tech Resource Center, April 7, 2010
  • Co-author, "Understanding Government Award Options," Wilson Sonsini Goodrich & Rosati Clean Tech Resource Center, October 28, 2009


Select Speaking Engagements

  • Guest Lecturer, Technology Transactions, Cornell Law School’s Technology and Entrepreneurship LLM Program at CornellTech, 2016-2021

  • “Licensing & Insolvency, an International Perspective,” Co-Presented with Taylor Wessing, July 8, 2020

  • Panelist, "Legal Practicum on Technology: Software Patent Debate," Cornell University Graduate School (Tech Campus), New York, New York, February 2013
  • "Legal Issues in Cloud Computing," Kloud Camp Mexico, Mexico City, Mexico, Fall 2011-2012
  • "What Is Cloud Computing?," AIPLA Mid-Winter Institute, Orlando, Florida, January 2011
  • "Improvement Provisions in License Agreements," ACI - Technology Licensing Agreements Conference, Washington, D.C., March 2010
Focus Areas
  • Artificial Intelligence and Machine Learning
  • Defense Tech
  • Digital Health
  • Government Contracts
  • Life Sciences
  • Quantum Computing
  • Software
  • Technology Transactions
Recent Insights
Client Highlights
Wilson Sonsini Advises Adyen on $335 Million Acquisition of Orb
On June 11, 2026, Adyen N.V. (AMS: ADYEN), a global financial technology platform, announced it has entered into a definitive agreement to acquire enterprise billing platform Orb for $335 million. Upon closing, Orb will become an indirect, wholly owned subsidiary managed under an incubator model. The strategic intent is to eventually create a unified infrastructure experience for merchants across billing and payments.
Learn More
Client Highlights
Wilson Sonsini Advises Kiavi on $717 Million Acquisition by Figure
On June 10, 2026, Figure Technology Solutions (Figure), the blockchain-native capital marketplace for the origination, funding, sale, and trading of tokenized assets, announced a definitive agreement to acquire Kiavi, an AI-powered lending platform for residential real estate investors. The transaction includes the purchase of Kiavi’s balance sheet assets by a joint venture between Figure and Sixth Street, a leading global investment firm, who is buying loans off Kiavi’s balance sheet. The total transaction purchase price is $717 million. Wilson Sonsini Goodrich & Rosati is advising Kiavi on the transaction.
Learn More
View All
  • people
  • insights
  • about us
  • careers
  • Binder
  • Alumni
  • Mailing List Signup
  • Client FTP Portal
  • Privacy Policy
  • Terms of Use
  • Accessibility
WSGR logo
Twitter
LinkedIn
Facebook
Instagram
Youtube
Copyright © 2026 Wilson Sonsini Goodrich & Rosati. All Rights Reserved.