Eustace Isidore

Eustace P. Isidore

Managing Attorney

512.617.5525 (direct)
512.617.5527 (fax)
512.630.8277 (cell)


Mr. Isidore is a founding partner of Yudell Isidore PLLC. Mr. Isidore’s practice is principally focused on the acquisition, licensing and transfer, protection and enforcement of intellectual property rights, including domestic and international patents, trademarks, and copyrights.

Mr. Isidore has written and/or prosecuted over 1000 patent applications, resulting in hundreds of patent issuances. Mr. Isidore has extensive expertise in a wide range of technologies including: computer hardware and software; computer networks; integrated circuits; semi-conductors; network security systems, including intrusion detection; Internet-based applications; point-of-sale retail applications; mechanical and bio-mechanical devices; transformer devices; and communication and wireless systems, including wired and fiber optic transceiver devices, wireless networks, RFID, Bluetooth, Wi-Fi, LTE and WiMAX protocols, and wireless devices and device applications.

Mr. Isidore also has experience with IP licensing, enforcement and protection issues, including: drafting licensing and sub-licensing agreements; drafting IP terms for business contracts; drafting corporate IP policies; drafting business-specific NDAs; counseling clients on business and legal aspects of IP licensing; preparing cease and desist correspondences to prevent/curtail infringement of clients’ IP rights, and responding to such correspondences; drafting infringement and patentability opinions; serving as client’s counsel in IP litigation; and negotiating settlements for patent infringement cases.

A former collegiate track and field athlete, Mr. Isidore also provides Sports Law services, including consulting with and reviewing, negotiating, and drafting contracts for sports athletes.


Intellectual Property

Patent Prosecution
Trademark Prosecution
Licensing &Technology Transfer


Communication Systems, Networks & Protocols, Wireless Systems, Networks, Devices & Applications, Electrical systems/Electronics, Integrated Circuits, Semiconductor design & fabrication, Computer Hardware and Software, Mechanical Devices, Biomechanical Devices, RFID and Security Systems, Transformer Devices


Registered to practice before the U.S. Patent and Trademark Office
State Bar of Texas
U.S. District Court, Northern District, Texas


J. D. University of Houston, 1998
B.S. in Electrical Engineering, cum laude,University of Houston, 1995


American Intellectual Property Law Association
Austin Black Lawyers Association
Capital of Texas Club-University of Houston Alumni Club
State Bar of Texas, Racial Diversity in the Profession Committee, Member since 2003, Vice Chair 2003-2004 State Bar of Texas, SBOT Texas Minority Attorney Program – Austin, Chair 2005 and 2006
Austin Bar Association