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Talk: Open Source Licensing

This keynote session (Thursday Oct. 13 from 1:00-3:00pm) will be divided into two major parts. First, Mr. Rosen will deliver a prepared talk approximately one hour in length. Second, the session will be opened to questions from the audience.

Mr. Rosen's talk will address the following topics:

  • What Is Open Source Software?
  • Five Key Principles
  1. Use open source for any purpose
  2. Make and distribute copies
  3. Create and distribute derivative works
  4. Access and use the source code
  5. Combine open source and other software
  • Intellectual Property
    • Patents
    • Trademarks
    • Copyrights
    • The Chain of Title
    • Collective and Derivative Works
  • Types of Licenses and Related Issues
    • Academic Licenses (e.g., BSD)
    • Reciprocal Licenses (e.g., GPL, LGPL)
    • Other Licenses
      • The Mozilla Public License (MPL)
      • IBM's Common Public License (CPL)
      • The Apache License
  • Choosing an Open Source License
  • What the Future May Bring

Lawrence Rosen

Lawrence Rosen is both an attorney and a computer specialist. He is founding partner of Rosenlaw & Einschlag, a technology law firm with offices in Los Altos Hills and Ukiah, California, that specializes in intellectual property protection, licensing and business transactions for technology companies.

In addition to this law practice, Larry also served as general counsel and secretary of the non-profit Open Source Initiative (OSI). OSI promotes the Open Source Definition for the good of the community, reviews and approves major open source licenses, and manages the "OSI Certified" certification mark for open source software. His book, Open Source Licensing: Software Freedom and Intellectual Property Law (, was published by Prentice Hall in 2004.

Larry currently serves as an advisor to Black Duck Software, and is on the advisory board of SpikeSource, Inc. Among his clients are a number of major open source software companies and projects around the world.

Before he became an attorney, Larry was a computer technologist. He managed computer activities and taught computer programming and data base design at Stanford University, later going into industry where he coordinated the design, development, manufacturing and marketing of data communications products. In addition to helping bring a number of technology companies to profitability, Larry also served for many years as member of the board of directors and chairman of Silicon Valley Credit Union, and has helped form and served on the boards of several non-profit charitable and mutual benefit organizations. He received his bachelor's degree from Dartmouth College, pursued a master of computer science degree at the University of North Carolina at Chapel Hill, and received his law degree from Santa Clara University.

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