David S Howell Expert Witness
Curriculum Vitae

Contact this Expert Witness

  • Company: Avatron
  • Phone: (503) 705-8900
  • Website: sw.expert

Specialties & Experience of this Expert Witness

General Specialties:

Software Engineering

Specialty Focus:



BS Computer Science, Case Western Reserve University; BA Music, Case Western Reserve University; MBA, Cornell University; MS Computer Science, Portland State University

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

David Howell is a former Apple software engineer with more than 30 years in the software industry and experience teaching computer science and engineering management at a graduate level. The founder of two companies, including one acquired by Apple, with a focus on mobile, desktop, and web apps, he is now researching deep learning and computer vision at Portland State University. In the past his roles have included Senior Software Engineer, VP of Engineering, Chief Technology Officer (CTO), Chief Executive Officer (CEO), and member of Boards of Advisors. As an expert witness, Mr. Howell has written 14 opinions, testified in Federal court twice, and been deposed three times, in cases involving patent infringement and validity (including two PTAB IPR cases), contract breach, and fraud. He holds 8 patents for software and hardware inventions. In addition to software engineering, Mr. Howell consults and testifies on general entrepreneurship, startup investment, and mergers & acquisitions. For more information about Mr. Howell’s record, please see https://sw.expert/expert-witness.