Intellectual Property Attorneys - Prass LLP


Attorney Bios

Ron PrassRonald E. Prass, Jr

Ron Prass has extensive experience in all major aspects of patent law, including patent
preparation and prosecution, patentability opinions, and litigation. In addition, Ron has technical
expertise in electrical engineering and computer software and hardware.

Ron’s particular technical expertise covers a wide variety of highly-technical subject matter,
including software, computer networking, wireless communications, telephone networks, image
processing, computer security, semiconductors, printers and copiers, projectors, cameras, speech
recognition and automated dialog systems, handheld processing devices, xerography,
cryptography, control systems, database management software, caching, DVD technology,
cellular telephony, fiber optics, automobiles, medical devices, automobile navigation and
transmission systems, computer data storage devices, and Internet-related technologies.
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Ellis B. Ramirez

Ellis Ramirez has extensive experience in all aspects of patent law, including patent preparation
and prosecution; patentability, validity, infringement, and due diligence opinions; strategic patent
portfolio development and management; and patent litigation. He also has technical expertise in
the areas of electrical engineering, computer engineering, computer software, and mechanical

Ellis’s particular technical expertise covers a variety of highly competitive technologies,
including microprocessors; telecommunications; online commerce; image processing; simulation
and modeling; network communication; artificial intelligence; medical imaging; power
management; and interactive entertainment.
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Michael CornelisonMichael J. Cornelison

Michael J. Cornelison has considerable patent law experience, including patent procurement, analysis, licensing and enforcement in the electrical, computer, mechanical and communication fields. He advises clients on patentability, infringement, freedom-to-operate, post grant work, and intellectual property portfolio management as they apply to various technologies, including electromagnetic devices, RFID, telecommunications, control systems, E-commerce, softwarerelated business methods, and medical devices. Michael also serves as a CLE speaker on topics including new patent rules and case law.

Before joining Prass LLP, Michael was a partner at Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd., an internationally recognized intellectual property boutique in Philadelphia, PA. Prior to his move to Philadelphia, Michael was a registered patent attorney at Birch, Stewart, Kolash & Birch, LLP and Oliff & Berridge, PLC in Northern VA.
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Dan TannerDaniel A. Tanner, III

Dan Tanner has extensive experience in the full range of patent development, acquisition, defense and enforcement services. Dan has represented a large and diverse group of U.S. and international clients, from large multi-national corporations to individual inventors and entrepreneurs. Dan is available to provide all manner of strategic client portfolio counseling, including comprehensive legal opinions on patent validity, patent infringement, patentability, freedom to operate, and licensing. Dan's widely-varied technical areas of expertise with mechanical and electrical inventions include: gas turbine engines; hybrid vehicle and electric vehicles; image forming devices; aircraft preflight planning and flight crew coordination methods and support systems; voice and data acquisition systems; communications; personal security identification; document security; aerial system collision avoidance systems and enhancements for unmanned aerial vehicles; HVAC&R systems, particularly for large computer data centers; and medical devices including in the areas of RF electrosurgery, stents and intravenous drug delivery.

Dan's patent litigation experience includes drafting complex expert reports, detailed briefs in support of
Motions for Summary Judgment, and Markman briefs. Dan has led detailed document review efforts in
complex litigation matters, and has prepared numerous fact and expert witnesses for deposition
and trial testimony. Dan was the lead associate for representation of an international client including
successfully resolving binding arbitration matters before an arbitration panel of three retired judges.
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