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Donny K. Samporna


San Jose, CA


Donny is a registered patent attorney at Haley Guiliano, focusing on patent litigation and prosecution. Donny brings vast real-world engineering and business expertise to plan, secure, and enforce commercially viable and strategic intellectual property rights. His experience covers many technologies, including mechanical, electrical, and computer-implemented methods and systems. He also routinely advises clients in the acquisition and management of trademark assets.

Before joining Haley Guiliano, Donny worked at law firms in the San Diego area, focusing on patent and trademark prosecution and litigation. Before pursuing his legal career, Donny was a lead design engineer focusing on electro-mechanical and rotational machinery and a property developer.

In addition to his position at Haley Guiliano, Donny is a supervising attorney at the Thomas Jefferson School of Law’s Patent and Trademark clinics. There, he guides the Clinic’s student associates in providing quality legal services to the local community on a pro bono basis. Outside of his legal pursuits, Donny enjoys the outdoors, cooking, shooting sports, and attending 49ers games. He also plays bass in the band, Innocent Bystanders.


Memberships & Affiliations

    • American Society of Mechanical Engineers
    • Society of Automotive Engineers