Represents clients in procuring U.S. and foreign patents in a variety of technologies including computer hardware and software, Internet-related technology, printing devices, network-related hardware and software, interactive and high-definition television technology, financial management systems, and various types of business methods.


  • Assists clients with evaluating and developing intellectual property portfolios.
  • Advises clients on various intellectual property issues, including identifying key areas for patent protection.
  • Expert in negotiation of contracts and license agreements.
  • Regularly prepares infringement opinions and validity opinions.
  • Expert in due diligence studies.


Prior Professional Experience

Patent Attorney, Lee & Hayes, PLLC

Senior Patent Attorney, Aspect Communications Corporation

Patent Attorney, Blakely Sokoloff Taylor & Zafman, LLP

Patent Attorney, Young & Basile, PC

Hardware Engineer, Symplex Communications Corporation

Design Engineer, Synthetic Vision Systems



Juris Doctorate, The John Marshall Law School, 1994

BSEE, Wayne State University, 1989

Steven R. Sponseller

Attorney at Law

Office  408.288.7588

Fax  408.288.7542



Practice Areas

Patent Procurement

IP counseling, portfolio analysis, and strategic planning

Due Diligence Studies and IP Audits

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