Lempia Summerfield Katz LLC

Nelson Rosario

Associate Attorney

Lempia Summerfield Katz LLC

Contact Information

312-854-8362, nrosario@lsk-iplaw.com


I am an attorney licensed to practice law in the State of Illinois. I am interested in the intersection of law, technology, and society. Presently, I work as an associate attorney at Lempia Summerfield Katz LLC focusing on patent prosecution matters for clients in the following technology spaces: business methods; trading systems; network and internet communication; navigation and routing; medical imaging; and medical devices. I am extremely interested in bitcoin/blockchain technologies.

During law school I gained experience working in the legal department for a large multi-national technology company, externing for a federal magistrate judge, and working as a law clerk for multiple Chicago based law firms.

Prior to law school I was an election professional in Leon County, Florida where I worked for the Supervisor of Elections office administering elections during the entirety of the 2008 and 2010 election cycles. While at the election office I gained experience in all aspects of absentee voting, voter registration, voter awareness, and voter outreach activities.

Areas of Law and Practice

Areas of Law Areas of Practice
Copyrights Copyright Infringement, Copyright Licensing, Copyright Litigation, Copyright Prosecution, Copyright Protection, Copyright Registration, International Copyright Law, Internet Copyright Law
Intellectual Property Artistic Property, Brand Management, Electrical Intellectual Property, Electronic Intellectual Property, Intellectual Property Arbitration, Intellectual Property Enforcement, Intellectual Property Infringement, Intellectual Property Licensing, Intellectual Property Litigation, Intellectual Property Portfolio Management, Intellectual Property Procurement, Intellectual Property Prosecution, Intellectual Property Rights, International Intellectual Property, International Licensing, Internet Intellectual Property, Literary Property, Mechanical Intellectual Property, Medical Intellectual Property, New Media Law, Piracy, Proprietary Rights, Protection of Personality
Patents Business Method Patents, Computer and Software Patents, Computer Architecture Patents, Design Patents, Electrical Patent Prosecution, Electrical Patents, Electro-Mechanical Patents, Electronic Patents, International Patent Prosecution, International Patents, Internet Patents, Mechanical Patent Prosecution, Mechanical Patents, Medical Patents, Patent Applications, Patent Infringement, Patent Interference Practice, Patent Licensing, Patent Litigation, Patent Portfolio Management, Patent Prosecution, Patent Protection, Pharmaceutical Patent Prosecution, Pharmaceutical Patents
Trade Secrets Theft of Trade Secrets, Trade Secret Misappropriation
Trademarks Counterfeiting, International Trademarks, Internet Trademarks, Lanham Act, Service Marks, Trade Dress, Trade Names, Trademark Arbitration, Trademark Infringement, Trademark Licensing, Trademark Litigation, Trademark Prosecution, Trademark Protection, Trademark Registration


  • Illinois

Employment History

  • Associate Attorney | Lempia Summerfield Katz

    2014 - 2015


  • JD | IIT Chicago-Kent College of Law

    2011 - 2014

  • BS in Computer Science | Florida State University

    2009 - 2011

  • BA in History and Political Science | University of Minnesota

    2000 - 2007

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Publications and Presentations

No Publications

  • Chicago, Illinois, Cook County

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