William J. Hoofe IV

William J. Hoofe IV



William J. Hoofe IV is a registered patent attorney. Mr. Hoofe’s practice focuses on patent application preparation and prosecution, patent opinion matters, and IP counseling to clients ranging from early startup companies to Fortune 500 companies in a broad range of technology fields. His extensive experience includes preparing and prosecuting patent applications for innovative medical devices, aerospace and defense technologies, semiconductor devices and fabrication, electronics, telecommunication systems, computer hardware, software, Internet of Things systems and devices, consumer electronics, display devices, energy-based medical treatment systems, medical imaging systems, and electromechanical and mechanical technologies.

Educational Background

Mr. Hoofe holds a Master of Science in Electrical and Computer Engineering with a Concentration in Electrical Engineering from the University of California, Irvine, 2020, a Certificate in Fundamentals of Electrical Engineering from Santa Clara University, 2004, a Juris Doctor from Western State University College of Law, 1998, and a Bachelor of Science in Information & Computer Science from the University of California, Irvine, 1989.

Professional Work History

Previously associated with premier California intellectual property (IP) law firms, Blakely Sokoloff Taylor & Zafman LLP and Stetina Brunda Garred & Brucker PC, and a Long Island, New York-based IP law firm, Carter Deluca Farrell & Schmidt LLP.

Professional work history includes 9½ years in the aerospace and defense industry at Northrop B-2 Division (Northrop Grumman Military Aircraft Systems Division, as of January 1, 1996) as an avionics systems engineer on the U.S. Air Force/Northrop B-2 Bomber Program and Advanced Projects programs, 1990-1999. Exercised technical control for the analysis and solution of various engineering problems. Responsibilities involved organizing, directing and performing research programs and studies in determining the feasibility of new engineering concepts, creating original designs, developing basic layouts and sketches for systems and structures from inception. Recipient of the Northrop B-2 Division Engineer of the Month Award in April 1991.

Admissions to Practice

Member of the State Bar of California and admitted to practice before the U.S. District Court for the Central and Northern Districts of California. Registered to practice before the U.S. Patent and Trademark Office as a patent attorney.


U.S. Patent No. 5,592,186 to William J. Hoofe IV, et al.
Assignee: Northrop Grumman Corporation
The invention relates generally to the field of electronic warfare, and particularly to frequency selective surfaces of radomes that may be built onto aircraft.


American Bar Association; American Intellectual Property Law Association; Orange County Bar Association; Orange County Intellectual Property Law Association; Orange County Patent Law Association; New York Intellectual Property Law Association; Intellectual Property Law Section of The California Lawyers Association; Association for Computing Machinery; IEEE Computer Society; National Air and Space Society; Sons of The American Legion.

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