Jonathan Lagarenne

Fox Rothschild LLP

Jonathan R. Lagarenne has nearly 30 years of experience assisting clients in business development, with a focus on the creation, development and management of intellectual capital; mergers and acquisitions; and commercial transactions, including international licensing and sale of capital goods.

He enforces and defends intellectual property rights (patent, trademark and copyright) and handles multimillion-dollar construction and engineering malpractice claims, insurance coverage disputes (under CGL, D&O and Professional Liability policies); environmental remediation actions and pharmaceutical product liability actions.

Jonathan has represented clients in international matters, particularly in the Pacific Rim and Europe. He assists early-stage and mature Fortune500 companies in developing patent portfolios; obtaining insurance coverage for claims made against them; handling international in-licensing and out-licensing of technologies; assisting with the sale, acquisition and merger of strategic businesses in the United States and abroad; and negotiating and drafting multimillion-dollar domestic and international contracts for the supply of custom designed equipment and services.

Prior to rejoining Fox, Jonathan was the executive vice president of Colorado-based emissions company specializing in clean coal technology for the power plant industry. Jonathan has first-hand experience managing technology-driven businesses, including service as :

  • CEO and COO of an international environmental equipment and engineering company, guiding the company to more than double its revenues, achieving nearly a tenfold increase in operating income, and positioning it for long-term growth through strategic business and technology acquisitions;
  • A commercial litigator focused on products, intellectual property, product liability defense, toxic tort, and environmental and insurance coverage disputes.

In addition to his undergraduate and law degrees, Jonathan studied European Economic Community and International Business Transactions at the University of Exeter in England.


  • Rutgers Law School (J.D., 1987)
  • University of Virginia (B.S. Chem. E., 1983)

MEMBERSHIPS : New Jersey State Bar Association

COURT ADMISSIONS : U.S. Court of Appeals, Federal Circuit

BAR ADMISSIONS : Colorado, New Jersey, U.S. Patent & Trademark Office


Rate : $$$

What types of cases Attorney Jonathan Lagarenne & Fox Rothschild LLP can handle?
Fox Rothschild LLP can handle cases related to laws concerning Corporate, Intellectual Property, Trademark infringement, Energy Utilities & Environmental. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Fox Rothschild LLP located?
Fox Rothschild LLP is located at 17th Street Plaza, 1225 17th St #2200, Denver, CO 80202, USA. You can reach out to Fox Rothschild LLP using their phone line 303.383.7684. You can also check their website or email them at [email protected].
How much would it cost to hire Fox Rothschild LLP?
Jonathan Lagarenne lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Fox Rothschild LLP
17th Street Plaza, 1225 17th St #2200, Denver, CO 80202, USA
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