David A. Plumley has eighteen years experience in intellectual property law. His practice focuses in transactional patent and trademark prosecution both domestic and international.

Prior to joining Christie, Parker & Hale, Mr. Plumley spent nine years as an engineer in the oil industry, first gaining hands-on engineering experience in petroleum refining, and then holding positions in business and environmental planning departments with Unocal Corporation. He uses his expertise in energy technologies to help clients protect their innovations in the fields of alternative energy and clean fuel technology. In particular, Mr. Plumley has assisted clients in fuel cell technology, secondary batteries, solar cell technology, biodiesel, hydrogen fuel, natural gas, and fuel additives. He also has extensive experience in medical device technology and electronics manufacturing.

In addition to his patent work, Mr. Plumley maintains a significant trademark practice, and has helped his clients protect and enforce their trademark rights in the U.S. and abroad. He has assisted a number of international clients in cost-effectively managing their large international trademark portfolios.

Admitted

• State Bar of California, 1991
• U.S. Patent and Trademark Office

Education

• J.D. degree, Loyola Law School, 1991
      o Phi Delta Phi Legal Honor Society
• B.S. degree in chemical engineering with honors, University of California, Santa Barbara, 1982 
      o Tau Beta Pi Engineering Honor Society

Professional Activities

• Pasadena Bar Association
• International Trademark Association
• Los Angeles Intellectual Property Association
• Italian American Lawyers Association
• American Institute of Chemical Engineers

Representative Publications and Presentations

• "Copyright Registration Practice— A Word of Caution," ABA Section of Intellectual Property Law Newsletter, Vol. 13, No. 1 (Fall 1994)
• Panelist, Intellectual Property Strategies for Start-Ups, Los Angeles Times Small Business Strategies Conference, October, 1998
• Round Table Moderator, Electronic Trademark Filing Strategies, International Trademark Association, November 2002
• Panel Moderator, Intellectual Property Strategies: Trade Secrets vs. Patents, Los Angeles County Technology Week, October, 2008