Mark J. Marcelli practices in the area of intellectual property law. Mr Marcelli focuses his practice on patent prosecution, analysis, validity and infringement, and trademark registration and prosecution. Mr. Marcelli has prepared and prosecuted patent applications both domestically and internationally in the electrical, semiconductor, chemical, materials and optoelectronic arts. He advises clients in all aspects of intellectual property law.

Mr. Marcelli's engineering and technology experience includes 15 years as an engineer in the electronics/semiconductor industry. He is admitted to practice in California and registered to practice before the U.S. Patent and Trademark Office. He is a member of the American Bar Association, the Italian American Lawyers Association and the Intellectual Property Section of the State Bar Association of California.

Mr. Marcelli is a 1991 graduate of the University of San Diego School of Law and a 1981 graduate of Rutgers University College of Engineering (B.S., chemical engineering with honors).

Representative Matters

• Have developed patent portfolios for major semiconductor, optoelectronic and drilling systems manufacturers

Areas of Practice

• Intellectual Property Law
• Patents
• Trademarks

Admissions

• California
• U.S. Patent and Trademark Office
• Supreme Court of California

Education

• University of San Diego School of Law, J.D., 1991

Other Experience

• Duane Morris LLP
  - Special Counsel, 2008-present
  - Associate, 2003-2007
• Christie, Parker & Hale, Pasadena, California
  - Associate, 2000-2003
• Ratner & Prestia, Valley Forge, Pennsylvania
  - Associate, 1998-2000
• Brown, Martin, Haller & McClain, San Diego, California
  - Patent Agent/Clerk, 1994-1995
• SGS-Thomson Microelectronics, San Diego, California
  - Process Engineer, 1995-1998
• Unisys Corporation, San Diego, California
  - Process Engineer, 1989-1994
• TRW Corporation, La Jolla, California
  - Process Engineer, 1986-1989
• RCA, Inc., Somerville, New Jersey
  - Process Engineer, 1983-1986
• Texas Instruments, Dallas-Houston, Texas
  - Process Engineer, 1981-1983

Professional Activities

• American Bar Association
• The State Bar of California
  - Intellectual Property Section
• Italian American Lawyers Association

Civic and Charitable Activities

• University of San Diego Alumni Association
• Rutgers University College of Engineering Alumni Association