Donald J. O’Brien
(414) 271-7590

Practice Areas

  • Patent

Technology Areas

  • Electrical Patents & Software Patents


  • University of Wisconsin-Madison (BA, Computer Science, with distinction)
  • University of Wisconsin Law School (J.D.)

Bar and Court Admissions

  • Supreme Court of Wisconsin
  • U.S. District Court for the Western District of Wisconsin
  • U.S. Patent and Trademark Office

Donald J. O’Brien is a registered patent attorney and Senior Associate at Andrus Intellectual Property Law. He focuses his practice on acquiring strong patent protection for innovative computer technologies through domestic and international patent prosecution.

Don also works with clients to develop intellectual property strategies that achieve and complement business goals. Further, he counsels clients regarding patentability, patent validity, and patent infringement.

Don has experience with a wide range of software and other computer-related technologies, including:

  • Artificial intelligence
  • Machine learning
  • Deep neural networks
  • Internet of Things (IoT)
  • Cloud services
  • Open source
  • Cybersecurity
  • Semiconductor
  • Computer networking
  • Quantum computing  
  • Operating systems
  • Databases
  • Massively parallel processing
  • Video codec
  • Wireless communications
  • Computer storage
  • Trusted platform modules (TPM)
  • System-on-a-chip (SOC)

Education and Experience

Don earned a B.A. (with distinction) in Computer Science at the University of Wisconsin-Madison, and a J.D. from University of Wisconsin Law School, where he was a student attorney at the Frank Remington Center. Don is a veteran and a former professional software engineer with full life-cycle and project management experience on numerous software, hardware, and network implementations.