Carl E. Schlier is a partner in the firm's Electrical Patent Prosecution and Litigation practice groups. As a former engineer and scientist for IBM Federal Systems Division, he possesses years of practical industry expertise and a deep understanding of the science and technology underlying his clients’ innovations.

Mr. Schlier represents manufacturers and research organizations, preparing and prosecuting patent applications and patentability and infringement opinions in a wide range of electrical technologies, including consumer electronics, computer hardware, software, magnetic media and medical imaging devices. He focuses on semiconductor technology, having extensive experience in semiconductor memories (in particular flash memories) and three-dimensional bonding of semiconductors. Mr. Schlier regularly litigates a full range of patent cases on behalf of clients in federal district court, with an emphasis on multi-defendant cases.

In addition to litigating and prosecuting patents, Mr. Schlier advises his clients on infringement avoidance, licensing, portfolio management and optimization, and reissue and reexamination strategies.

At IBM Mr. Schlier worked in the field of radiation effects on semiconductor devices and the development of CMOS semiconductor processes for military applications. He published several technical papers on the subject.

Mr. Schlier maintains a close working relationship with his clients, visiting their offices regularly to evaluate their innovations, determine business goals and develop ways to enhance their market position. He visits Japan often and spent six months living there in order to familiarize himself with his Japanese clients’ needs, culture and business operations. Mr. Schlier also works closely with client trainees in the U.S. office in order to guide them through the complexities of the U.S. legal system.


  • George Mason University School of Law (J.D.)
  • Pennsylvania State University (M.S.)
    • Electrical Engineering
  • Pennsylvania State University (B.S., with distinction)
    • Electrical Engineering


  • Virginia
  • Registered to practice before the U.S. Patent and Trademark Office
  • U.S. District Court for the Eastern District of Virginia


Professional Affiliations

  • American Bar Association, Section of Intellectual Property Law
  • Virginia State Bar