E. F. Mano DeAyala

Allan Bullwinkel’s practice focuses on patent litigation related to computer and electrical engineering technologies in federal district courts and inter partes review at the U.S. Patent Trial and Appeal Board. He also handles cases involving patent-related antitrust litigation and IP-related appeals before the Federal Circuit. With an engineering degree and many years of prior work experience as an engineer, Mr. Bullwinkel brings a robust understanding of technical issues and an abilit...

Catherine H. Day is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Catherine H., who practices law in Houston, Texas, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Catherine H. is held by other top lawyers in the same geographic and legal practice area.

Brian E. Simmons focuses on all facets of intellectual property law, including patent and trade secret litigation; patent counseling; due diligence investigations for investments, acquisitions, and divestitures; technology transfers, joint developments, and other research agreements; licenses; transactions involving IP; and risk consulting. Mr. Simmons has represented clients in a variety of matters in the chemical arts after serving as a senior research chemist prior to practicing law. His e...

Lauren Black is a partner in the firm’s Litigation Practice Group with more than a decade of experience handling a diverse array of matters. While her practice is “industry agnostic,” she has represented clients in the energy, construction, manufacturing, healthcare, shipping, technology, and logistics industries. Lauren has achieved favorable results for clients facing all aspects of civil litigation, from a strategic approach to early dispute resolution to a favorable sett...

Jonathan began his education at Abilene Christian University where he graduated with a Bachelor of Science, highest honors, from the Agriculture and Environmental Sciences Department in 2004. There he distinguished himself as a Jack Pope Fellow, student body president, SGA Treasurer and as a leader for a variety of other student organizations. He was also honored with the University Scholar Award, Trustee Award, Young American Award, and National Eagle Scout Scholarship. In addition, he was s...

Aaron P. Roffwarg is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Aaron P., who practices law in Houston, Texas, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Aaron P. is held by other top lawyers in the same geographic and legal practice area.

Luis Fabrega is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Luis, who practices law in Houston, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luis is held by other top lawyers in the same geographic and legal practice area.

Marc Grossberg's primary practice is representing clients in tax controversies at the examination, Internal Revenue Service appeal and trial and federal appeals levels, collection issues and pre-IRS examination compliance issues, including filing and foreign accounts and unique issues. Recent representations include bringing taxpayers "in from the cold," meaning assisting them in becoming compliant with the Internal Revenue Service before the Internal Revenue Service has discovered the non-co...

Brad Porter is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Brad, who practices law in Houston, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brad is held by other top lawyers in the same geographic and legal practice area.

Jim M. Perdue, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs and Personal Injury Litigation - Plaintiffs. Jim M., who practices law in Houston, Texas, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jim M. is held by other top lawyers in the same geographic and legal practice area.