Howard J. Klein

Howard J. Klein

Attorney, Klein O'Neill & Singh LLP

Mr. Klein is a registered patent attorney with over thirty years of experience in patent and trademark prosecution, licensing, opinion work, and litigation. Mr. Klein has written and prosecuted hundreds of patents in a wide variety of technologies. He has been engaged extensively in validity and infringement opinions, and he has experience in the litigation of all aspects of IP: Patents, trademarks, copyrights, and trade secrets.

Mr. Klein has served clients throughout the United States, as well as Europe, Taiwan, and Australia. Clients include start-up companies, and corporations of all sizes, including Fortune 500® companies.

Mr. Klein is now also an Adjunct Professor of Law at Chapman University Law School.

  • Juris Doctor, Duke University (1975)
  • B.S. in Physics, M.I.T. (1972)


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