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Barcelo, Harrison & Walker, LLP

Newport Beach, CA | Palo Alto, CA | Washington, DC

Joshua C. Harrison



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Dr. Harrison represents clients in intellectual property legal matters, with a focus on patent preparation, prosecution, licensing, pre-litigation, opinions, and litigation.

Legal Practice Areas

Provide high quality preparation and prosecution of US Patent applications; manage the acquisition of related foreign patent rights.

Assist clients in intellectual property licensing negotiations and related patent analyses and transactions.

Provide right-to-use / patent clearance investigations, and analyses & opinions regarding patent validity, infringement, and essentiality to standards.

Represent clients in intellectual property disputes, including pre-litigation counseling and representation, patent litigation and litigation support, alternative dispute resolution (e.g. mediation, arbitration), and patent reexamination requests and proceedings.

Representative Legal Experience

Partner, Barcelo, Harrison & Walker, LLP – Prepared and prosecuted US patent applications, and evaluated or asserted patents in a wide variety of electrical, mechanical, and biomedical fields (e.g. magnetic recording heads, information storage devices, and related technologies such as data compression, dental implants, ophthalmic surgical devices, vehicle accessories, therapeutic aids, testing and metrology apparatuses, sports equipment, etc); successfully represented Fortune 500 and smaller clients in dozens of intellectual property disputes, including co-representation in several major patent litigation matters.

In-house Patent Attorney, Western Digital Corp. – Represented the company in several IP licensing and co-development agreements; managed the successful preparation and prosecution of dozens of patent applications; assisted with the oversight of patent litigation matters.

Litigation Associate, Irell & Manella, LLP – Subordinate member of a leading and renowned patent litigation team.

Technical Experience

R&D Manager, Seagate Technology

Assoc. Prof. (Engineering), Univ. of Queensland

Engineer, Applied Magnetics Corp., and IBM Corp.

Bar and Court Admissions

U.S. Federal Courts

California State Courts

U.S. Patent and Trademark Office


JD, Stanford Law School

Ph.D. (Engineering), UCSD

M.Sc. (Engineering), UCSD

B.Sc. (Engineering), USC

Military Service

23 years total service in US Marine Corps Reserve & US Army Reserve

Joint Service Achievement Medal (Joint Intelligence Center Pacific)

Honorable discharge, 2003


"Raising Healthy Patents", New Matter, State Bar of California, Vol. 39, No. 3, pages 14-18 (2014).

"Attracting the World's Policemen to Protocol I Additional to the 1949 Geneva Conventions", U.S. Air Force Academy Journal of Legal Studies, Vol. 12, pages 103-137 (2003).

"On the Convergence of U.S. and Australian Patent Law", Melbourne Journal of Int. Law, Vol. 2, Issue 2, pages 351-380 (2001).

Author of 19 publications in refereed scientific/engineering journals. 

Named inventor on ten issued US patents.