Stephen Pachol


With more than 10 years of experience drafting and prosecuting patent applications, Stephen Pachol focuses on developing relationships with domestic and foreign clients, particularly in China and Japan, and securing the highest quality patents for them.

Nixon Vanderhye Shareholder Stephen Pachol is a registered patent attorney who works with numerous clients around the globe. His practice, which is balanced between foreign and domestic clients, includes drafting many applications from scratch and prosecuting numerous applications for those seeking patents in the U.S.

Stephen’s primary focus is on technologies related to electrical and computer software patents. He has worked on numerous complex technologies, including:

  • Scanning and Printing Systems
  • Video Display Systems
  • Telecommunication Systems
  • Video Game Systems
  • Algorithmic Trading Systems
  • Machine Learning
  • Drone Technology
  • Big Data Technology

Stephen regularly collaborates with foreign patent agents and attorneys from around the world. He frequently works with agents in Japan and China to help them obtain patent rights on matters typically involving inbound PCT or Paris Convention applications. In addition, Stephen works with many domestic clients, engaging with companies and individual inventors to draft original patent applications that capture the inventive concepts disclosed by these parties.

In his prosecution practice, Stephen understands the importance of USPTO patent interviews, and frequently engages with examiners during this process in order to convey the details related to applications he is handling for his clients. He also understands the power of appeal and frequently sends cases to the PTAB when matters cannot be resolved through mutual compromise. As a believer in obtaining the highest quality patents, Stephen will fight for the best possible claim scope for his clients.

While attending law school, Stephen served as an editor and a board member on a law review journal focused on intellectual property law. After graduating law school in 2008, he worked for an intellectual property boutique in Alexandria, Virginia, where he focused his practice primarily on patent prosecution. Stephen joined Nixon & Vanderhye in 2011 and became a Shareholder in 2015. Today, he actively participates in firm management.

  • Communications & Data Transfer
    • Telecommunications
      • Encryption
    • Internet of Things
    • Data Analytics
      • Data Mining
      • Electronic Trading Exchanges
      • Financial Technology
  • Electrical & Computer Technology
    • Computer Systems (Hardware, Software, & Firmware)
      • Computer Architecture
      • Multi-processor Systems
      • Computer Graphics
      • Data Mining
      • Database Systems
      • Image/Data Processing
      • Video Coding/Decoding
      • Xerographic Reproduction
    • Artificial Intelligence
      • Machine Learning
  • Optical Devices & Systems
    • Displays
      • LEDs
      • Liquid Crystal and OLED Displays
      • Plasma/CVD Processing
      • Television Systems
  • Virginia
  • Illinois
  • U.S. Patent and Trademark Office
  • J.D., The John Marshall Law School, 2008
  • B.S. in Computer Science, University of Illinois at Urbana-Champaign, 2002

Get To Know Stephen

What are your hobbies?

Running and being with my family.

What would your perfect day include?

Sitting on a sunny beach with my wife and dogs.

What inspires you?

The Pope