Meet Our Attorneys
Roland Tong
Business Litigation & Intellectual Property Attorney
Roland Tong brings over 20 years of experience in business disputes, contract litigation, patent prosecution, and trademark law. Recognized by Super Lawyers and rated 10/10 on Avvo, Roland is admitted to practice in California, Nevada, and before the U.S. Supreme Court.
Ace Aldana
Immigration Attorney
Ace Aldana brings more than 25 years of legal experience helping individuals, families, and businesses navigate the U.S. immigration system. With a background as General Counsel for multinational companies, Ace offers a unique combination of corporate insight and immigration expertise.
Jeffrey E. Semprebon
Patent Agent
Jeffrey Semprebon is a Patent Agent with over 30 years of experience. Having worked in IP practices and as Lead Patent Agent for a nanotechnology firm, he helps independent inventors and businesses prosecute patents across mechanical, computer-implemented, and ornamental technologies.
Legal Experience You Can Count On
Ascendrix Law Firm is an Orange County, California law firm dedicated to providing experienced, client-focused legal representation across a broad range of practice areas. We represent individuals, families, professionals, and businesses in matters involving business litigation, intellectual property, estate planning, immigration, bankruptcy, and personal injury.
What sets us apart is the depth of experience our attorneys bring to every case. We combine technical knowledge with practical legal strategy, giving our clients a distinct advantage whether they are protecting a patent, resolving a business dispute, planning their estate, or navigating the U.S. immigration system. Every client receives direct, personal attention from an experienced attorney who is committed to their success.
We are proud to serve clients throughout Southern California and beyond, with representation in both state and federal courts.
Technical Insight Meets Legal Strategy
Ascendrix Law Firm’s far-reaching, technical background allows us to quickly understand not only your innovations and processes—but also the highly competitive, global landscape of today’s business climate. Our experience in both IP prosecution and IP defense provides a 360-degree view—equipping us to anticipate challenges, strengthen your position, and guide you toward informed decisions.
Below is the diverse legal experience you can count on when working with our firm: