Law Firm Of Walt Fair

Law Firm Of Walt Fair, known as Walt Fair, PLLC, is a regional legal practice headquartered in Waco, Texas. The firm operates from a single office in Waco and is not identified as a BigLaw firm or a large IP boutique in prominent rankings like AmLaw or Chambers. Primarily, Walt Fair, PLLC focuses its services on real estate law, finance, corporate and business law, and estate planning, serving clients throughout Texas and nationally in these areas.

Within its broader practice, Walt Fair, PLLC has a limited but notable involvement in patent litigation. The firm's patent litigation experience, as tracked, exclusively involves representing plaintiffs in intellectual property disputes. While the firm's primary practice areas do not extensively detail technology specialties, its patent litigation engagements indicate experience in mobile technology and Internet Protocol (IP) systems, based on its representation in significant cases.

A prominent engagement for the firm is its representation of Smart Mobile Technologies LLC in litigation against Apple Inc. This matter included multiple proceedings before the Patent Trial and Appeal Board (PTAB) and appeals to the U.S. Court of Appeals for the Federal Circuit. In March 2026, the Federal Circuit upheld the patentability of several claims of Smart Mobile Technologies LLC's U.S. Patent No. 9,614,943, which concerns a system to interface Internet Protocol, against Apple's obviousness challenge in an inter partes review (IPR) proceeding. Additionally, in January 2026, the Federal Circuit partially reversed and remanded a PTAB decision concerning U.S. Patent No. 8,472,936, relating to mobile devices, in another IPR initiated by Apple. These outcomes highlight the firm's experience in challenging IPR proceedings and Federal Circuit appeals.

The firm's patent litigation efforts are notably led by Mark D. Siegmund, who serves as Of Counsel to Walt Fair, PLLC. His profile at the firm specifically lists "Local Counsel – Patent Litigation" among his practice areas. Mark Siegmund has been involved in both tracked patent cases for the firm.