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Leslie S. Miller is a registered patent attorney and of counsel in Reinhart's Intellectual Property and Litigation practices. He serves a wide range of regional, national and international technology-driven clients involved in fields where the protection of new technology is crucial to their future success. Les draws upon his expertise and years of experience to help clients navigate the complex issues related to patent law such as patent development, strategy, prosecution and enforcement. He is also highly experienced in intellectual property competitive analysis to help his business clients both assess and avoid potential patent infringement issues as well as to determine whether their patents are being infringed by competitors.

Les has a long and distinguished career in intellectual property law. Prior to joining Reinhart, he worked with Leland Stanford Junior University on ring laser technology, with Johns Hopkins University on NASA bidirectional telemetry, with Caltech on NASA jet propulsion laboratory rocket technologies, and with a division of Siemens AG in establishing a preeminent patent portfolio for that division through growth of their patent portfolio as well as cross-licensing.

His broad technological background includes scientific and medical devices, aerospace technologies, telemetry, computer software, automated components, and a wide variety of electrical, mechanical, electromechanical, and other technologies. He also has considerable experience with business method and software patents for a diverse range of business clients.

He helps promote high standards of intellectual property practice through his teaching by having supplemented his legal practice serving as an adjunct assistant professor at Marquette University Law School teaching courses on intellectual property licensing. He also speaks to business and professional audiences on key intellectual property topics that affect businesses’ bottom line.

Les primarily serves clients in the following areas:

  • Patent Prosecution – Protecting Inventions
  • Patent Searches – Patentability, Right-to-Use and Validity
  • Competitive Analysis of Patent Portfolios
  • Establishing a Corporate Patent Culture: Training and Education
  • Intellectual Property Audits


  • J.D., University of Michigan Law School
  • Fellowship in Electrical Engineering at Hiroshima University
  • B.S.E.E., Michigan Technological University (Electrical Engineering)

Bar Admissions



  • Designing a patent strategy for new products in order to establish and maintain a marketing advantage over competitors
  • Developing a patent presence in a field where competitors already have a significant patent presence. Key examples are fields that are becoming increasingly dominated by patents.
  • Expanding an initial patent application into a portfolio of related patents to prevent competing designers from "designing around" a single patent
  • Assisting clients who find themselves in the difficult position of being accused of patent infringement to find a strategy to design around the patent or to otherwise compete against the patented design
  • Working with businesses and industries that have not traditionally focused on patent development to protect new developments to help them to stay ahead of competitors
  • Helping clients to develop strategies both to prevent infringement and to enforce their patents to the extent necessary, including patent litigation
  • Collaborative work in acquisitions and mergers to analyze intellectual property assets to ensure that they are valid and assignable
  • Conducting onsite intellectual property seminars for business clients as a means to raise awareness and initiate the establishment of a patent program designed to identify inventions and secure protection for them

Honors & Affiliations

  • State Bar of Wisconsin
  • State Bar of California
  • Admitted to practice in the U.S. Court of Appeals for the Federal Circuit and the U.S. Supreme Court