Mark E. Stallion

Partner

As a registered patent attorney with a background in engineering, Mark Stallion brings his intellectual property clients a strong combination of legal and technical knowledge. He handles patent and trademark prosecution and portfolio management, both domestic and foreign. He also renders patent infringement, validity and other opinions and advises in areas including:

  • Software, artificial intelligence, and blockchain
  • Business methods, online marketing, and advertising
  • Automated food processing and food science technology
  • Electrical, signal, audio, and image processing, electro-optics
  • Manufacturing and electro-mechanical design
  • Mechanical, heavy equipment, and robotics
  • Telecommunications and utilities
  • Petroleum exploration/production systems

Mark also provides patent litigation support and litigation management. His practice includes patent, copyright, trademark, trade secrets, technology agreements, confidentiality/nondisclosure agreements, employment/consulting agreements, cloud computing and social media policies and agreements, software escrow and data rights agreements, and licensing agreements for open-source software.

He also handles IP portfolio management, including intellectual property valuation and due diligence in mergers and acquisitions, for Fortune 100 and Fortune 500 companies, and for mid-cap and startup companies. Mark also represents various universities and research institutions, assisting with their protection and commercialization efforts.

Mark previously spent more than a decade as a senior project engineer and engineering manager. His work included technical areas such as electronic, electro-mechanical, digital and analog signal processing, software, electro-optical, display/vision systems, IR/electronic airborne counter-measures, processor and control systems, digital map and radar image analysis for target recognition, and terrain following. As a patent attorney, he has drafted patent applications for many of these technologies.

Mark is dedicated to mentoring local students and entrepreneurs. He has mentored high schoolers through Junior Achievement and served on the boards of the Independent Youth entrepreneurship organization and the Boys & Girls Clubs of America. In addition, he is a board member for Arch Grants, which provides funding to innovative startup companies, and for Venture Café, which is also a part of the startup community ecosystem.

    Education

    • Georgia Institute of Technology (B.S., 1985)
      • Electrical Engineering
      • Computer Engineering
    • Saint Louis University School of Law (J.D., 1997)

    Bar Admissions

    • Missouri
    • U.S. Patent and Trademark Office

    Professional Affiliations

    • American Bar Association
    • The Bar Association of Metropolitan St. Louis
    • Mound City Bar Association

    Community Involvement

    • Arch Grants (Prior Board Member)
    • Boys & Girls Clubs of Greater St. Louis (Board Chair)
    • Cardinal Glennon Children's Foundation (Board Member)
    • HBCU Consortium (Founder)
    • Independent Youth (Prior Advisory Board Member)
    • Leadership St. Louis
    • U.S. Patent and Trademark Office (Patent Pro Bono Program, Advisory Board)
    • Boys & Girls Clubs of Greater St. Louis (Board Chair)
    • Venture Café (Prior Board Member)

    Awards & Honors

    • Named to The Best Lawyers in America®, Intellectual Property Law (2010); Copyright Law (2014-2023; 2025; 2026); Patent Law (2019-2026)
    • Missouri Lawyers Media Top 100 Attorneys (2023)
    • Selected for Missouri Lawyers Media Top 100 Power List (2023)
    • Top Patent Attorneys, St. Louis Small Business Monthly (2018-2020)
    • Best IP Attorneys, St. Louis Small Business Monthly (2022)
    • Intellectual Property Law Power List, Missouri Lawyers Media (2022)

Mark E. Stallion

As a registered patent attorney with a background in engineering, Mark Stallion brings his intellectual property clients a strong combination of legal and technical knowledge. He handles patent and trademark prosecution and portfolio management, both domestic and foreign. He also renders patent infringement, validity and other opinions and advises in areas including:

  • Software, artificial intelligence, and blockchain
  • Business methods, online marketing, and advertising
  • Automated food processing and food science technology
  • Electrical, signal, audio, and image processing, electro-optics
  • Manufacturing and electro-mechanical design
  • Mechanical, heavy equipment, and robotics
  • Telecommunications and utilities
  • Petroleum exploration/production systems

Mark also provides patent litigation support and litigation management. His practice includes patent, copyright, trademark, trade secrets, technology agreements, confidentiality/nondisclosure agreements, employment/consulting agreements, cloud computing and social media policies and agreements, software escrow and data rights agreements, and licensing agreements for open-source software.

He also handles IP portfolio management, including intellectual property valuation and due diligence in mergers and acquisitions, for Fortune 100 and Fortune 500 companies, and for mid-cap and startup companies. Mark also represents various universities and research institutions, assisting with their protection and commercialization efforts.

Mark previously spent more than a decade as a senior project engineer and engineering manager. His work included technical areas such as electronic, electro-mechanical, digital and analog signal processing, software, electro-optical, display/vision systems, IR/electronic airborne counter-measures, processor and control systems, digital map and radar image analysis for target recognition, and terrain following. As a patent attorney, he has drafted patent applications for many of these technologies.

Mark is dedicated to mentoring local students and entrepreneurs. He has mentored high schoolers through Junior Achievement and served on the boards of the Independent Youth entrepreneurship organization and the Boys & Girls Clubs of America. In addition, he is a board member for Arch Grants, which provides funding to innovative startup companies, and for Venture Café, which is also a part of the startup community ecosystem.

Mark E. Stallion

As a registered patent attorney with a background in engineering, Mark Stallion brings his intellectual property clients a strong combination of legal and technical knowledge. He handles patent and trademark prosecution and portfolio management, both domestic and foreign. He also renders patent infringement, validity and other opinions and advises in areas including:

  • Software, artificial intelligence, and blockchain
  • Business methods, online marketing, and advertising
  • Automated food processing and food science technology
  • Electrical, signal, audio, and image processing, electro-optics
  • Manufacturing and electro-mechanical design
  • Mechanical, heavy equipment, and robotics
  • Telecommunications and utilities
  • Petroleum exploration/production systems

Mark also provides patent litigation support and litigation management. His practice includes patent, copyright, trademark, trade secrets, technology agreements, confidentiality/nondisclosure agreements, employment/consulting agreements, cloud computing and social media policies and agreements, software escrow and data rights agreements, and licensing agreements for open-source software.

He also handles IP portfolio management, including intellectual property valuation and due diligence in mergers and acquisitions, for Fortune 100 and Fortune 500 companies, and for mid-cap and startup companies. Mark also represents various universities and research institutions, assisting with their protection and commercialization efforts.

Mark previously spent more than a decade as a senior project engineer and engineering manager. His work included technical areas such as electronic, electro-mechanical, digital and analog signal processing, software, electro-optical, display/vision systems, IR/electronic airborne counter-measures, processor and control systems, digital map and radar image analysis for target recognition, and terrain following. As a patent attorney, he has drafted patent applications for many of these technologies.

Mark is dedicated to mentoring local students and entrepreneurs. He has mentored high schoolers through Junior Achievement and served on the boards of the Independent Youth entrepreneurship organization and the Boys & Girls Clubs of America. In addition, he is a board member for Arch Grants, which provides funding to innovative startup companies, and for Venture Café, which is also a part of the startup community ecosystem.

Mark E. Stallion

As a registered patent attorney with a background in engineering, Mark Stallion brings his intellectual property clients a strong combination of legal and technical knowledge. He handles patent and trademark prosecution and portfolio management, both domestic and foreign. He also renders patent infringement, validity and other opinions and advises in areas including:

  • Software, artificial intelligence, and blockchain
  • Business methods, online marketing, and advertising
  • Automated food processing and food science technology
  • Electrical, signal, audio, and image processing, electro-optics
  • Manufacturing and electro-mechanical design
  • Mechanical, heavy equipment, and robotics
  • Telecommunications and utilities
  • Petroleum exploration/production systems

Mark also provides patent litigation support and litigation management. His practice includes patent, copyright, trademark, trade secrets, technology agreements, confidentiality/nondisclosure agreements, employment/consulting agreements, cloud computing and social media policies and agreements, software escrow and data rights agreements, and licensing agreements for open-source software.

He also handles IP portfolio management, including intellectual property valuation and due diligence in mergers and acquisitions, for Fortune 100 and Fortune 500 companies, and for mid-cap and startup companies. Mark also represents various universities and research institutions, assisting with their protection and commercialization efforts.

Mark previously spent more than a decade as a senior project engineer and engineering manager. His work included technical areas such as electronic, electro-mechanical, digital and analog signal processing, software, electro-optical, display/vision systems, IR/electronic airborne counter-measures, processor and control systems, digital map and radar image analysis for target recognition, and terrain following. As a patent attorney, he has drafted patent applications for many of these technologies.

Mark is dedicated to mentoring local students and entrepreneurs. He has mentored high schoolers through Junior Achievement and served on the boards of the Independent Youth entrepreneurship organization and the Boys & Girls Clubs of America. In addition, he is a board member for Arch Grants, which provides funding to innovative startup companies, and for Venture Café, which is also a part of the startup community ecosystem.