Patent Monetization Experts

A global leader in selling intellectual property

 ICAP Patent Brokerage is the global leader in selling intellectual property, achieving the highest patent sales volume in the world. As patent brokers we specialize in patent licensing and sales by leveraging the talents of experienced intellectual property monetization professionals to match buyers and sellers for the sale of intellectual property including patents and other intellectual property assets. With multiple transaction platforms and unparalleled industry knowledge and experience, no other patent brokerage firm has the proven track record of ICAP Patent Brokerage.


Our People

Doug Rhoten

Doug Rhoten - Patent Broker


Doug Rhoten is Chairman of ICAP Patent Brokerage, Co-Founder of Otra Capital Alternative Lending Fund, founding member IP Angels Fund, was a founding member of LES Patent Standards Committee, was an FFVC Mentor, Spiral Sun Health Food Fund Advisor & advisor to Liquineq BlockChains.  Mr. Rhoten was Chief Executive Officer of ICAP Americas for 12 years, where his responsibility included all ICAP Americas voice brokerage activities, operational responsibility for the businesses located in the region comprising of 1,800 employees and $800 million in revenues.  At ICAP, his executive roles also included membership on the ICAP Group Global Management and Risk Committees as well as the Chairman of the Operating Committee of ICAP Americas.  He is also a past member of the ICAP Group Global Intellectual Property and Technology Governance Committees, and is a founding member of The Green Exchange.   A graduate of St. Michael’s University, Mr. Rhoten began his ICAP experience at one of its predecessor companies 35 years ago as a money market and swaps broker in 1977. He moved into derivatives in 1985 and subsequently headed up the interest rate derivative division.  After 1999, Mr. Rhoten assumed increasingly greater senior management responsibilities and focused on a number of growth initiatives for ICAP including building and strengthening its equity, credit, energy, emerging markets, soft commodity and futures capabilities.  Most recently he expanded into brokerage of non-capital markets products such as media rights and patent monetization.  Mr. Rhoten has been an active participant on a number of industry committees, including serving as a former member of the US Federal Reserve Bank Foreign Exchange Committee, the Chilean Products Exchange, the charity of New Heights Warriors, Cross Asset Software and CABEI boards.

Paul Greco

Paul Greco - Patent broker

Paul V. Greco is a Senior Vice President in ICAP Patent Brokerage’s New York office, and heads up the high tech brokerage group for both the private and public brokerage platforms.  Mr. Greco has been a practicing attorney for 19 years, focusing on corporate finance, M&A, securities and intellectual property matters for businesses in the on-line, software development and consumer products industries.  In 2004 he founded and partnered in Sierchio Greco & Greco, LLP, a boutique securities law firm and venture capital practice. From 2001 through 2004 he was a principal in the law firm of Garvey Schubert Barer, a multi-jurisdictional, full-service firm.  Prior to this he co-founded and was a principal partner in Aieta & Greco, a securities, IP and venture capital boutique law firm located in the hub of New York’s Silicon Alley. Since 1999 and until 2012, Mr. Greco was a Director of AGB2 Inc., a privately held intellectual property development and holding company. He is also listed as an inventor on 5 issued U.S. patents.  Mr. Greco graduated cum laude with a B.A. in English from Boston College and received a J.D. from Fordham University School of Law.  He is admitted to the New York, SDNY and EDNY bars.

Mark Thomann

Mark Thomann - Patent broker

 Mark Thomann is the Trademark and Brand Agent for ICAP Patent Brokerage.  Mr. Thomann brings to ICAP Patent Brokerage a long track record of successful monetization of brands and trademarks, as well as distressed business enterprises and their assets.  Mr. Thomann has established himself as one of the leading transactional IP experts and is also the Chief Executive Officer of River West Brands, a company that acquires, redevelops, and monetizes brands. Mr. Thomann has over 15 years of experience valuing, structuring, and consummating complex financial transactions, involving trademarks/brands and other IP assets.

Mr. Thomann received a B.A. from the College of The Holy Cross in Worcester, Massachusetts.

About Us

Ho Lee

Ho Lee - Patent Broker

Ho Lee is currently a Senior Vice President of IPTNA in Gangnam-gu, Seoul, Korea. Prior to that Mr. Lee served as Managing Director of HLP Integration (Seoul Office). Mr. Lee has held intellectual property leadership positions and technology leadership positions with IP Cube Partners and with LG Electronics. His academic credentials consist of an MBA in Economics from Helsinki University, and a B.S. in Materials Engineering from Seoul National University.

Tiffany Grantom

Tiffany Grantom - ICAP Patent Operations


Tiffany Grantom is a Special Projects and Operations Consultant for ICAP Patent Brokerage and is based in Eugene, Oregon.  In her role, Mrs. Grantom oversees firm operations, performs IP diligence directed toward ownership, legal status, and history of IP portfolios engaged by ICAP Patent Brokerage, and assists with marketing efforts for private sale transactions.

Prior to joining ICAP Patent Brokerage, Mrs. Grantom owned and operated Treasure Valley DD LLC, where she and a team of paralegals provided IP due diligence and prosecution services to large and small operators in the IP transactions space.  Previous to that, Mrs. Grantom had been employed by Intellectual Ventures as a senior paralegal in contracts and transactions.  Mrs. Grantom gained patent prosecution experience at boutique IP law firm Seed IP Law Group.

Tiffany holds an A.A. from Everett Community College.

Mark O'Donnell

Mark O'Donnell - CEO at Oink Analytics, LLC

Mark provides IP analytics consultation to ICAP Patent Brokerage. Mark is currently the CEO and Managing Director of Oink Analytics, LLC. His 20+ year career includes Head of Transaction Analytics at IPwe Inc, Vice President of Search and Analytics at MaxVal Group Inc, and Vice President and Founder of's Patent Research Services.  Mark's early career in engineering includes Risk Analysis Enterprise Solutions Architect for the US Customs and Border Protection's e-Modernization Program, Sr. Imaging Scientist at the Xerox Corporation, and Optical Engineer at the Eastman Kodak Company. Mark holds an MS in Imaging Science, and Undergraduate in Optical Engineering.